2031115020 has 96 divisors (see below), whose sum is σ = 6211296000. Its totient is φ = 491823360.

The previous prime is 2031115007. The next prime is 2031115033. The reversal of 2031115020 is 205111302.

It is an interprime number because it is at equal distance from previous prime (2031115007) and next prime (2031115033).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 988314 + ... + 990366.

It is an arithmetic number, because the mean of its divisors is an integer number (64701000).

Almost surely, 2^2031115020 is an apocalyptic number.

2031115020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031115020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3105648000).

2031115020 is an abundant number, since it is smaller than the sum of its proper divisors (4180180980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031115020 is a wasteful number, since it uses less digits than its factorization.

2031115020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3573 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2031115020 is about 45067.8934497720. The cubic root of 2031115020 is about 1266.4212015884.

Adding to 2031115020 its reverse (205111302), we get a palindrome (2236226322).

The spelling of 2031115020 in words is "two billion, thirty-one million, one hundred fifteen thousand, twenty".