2131022140 has 48 divisors (see below), whose sum is σ = 5073052320. Its totient is φ = 745424640.

The previous prime is 2131022123. The next prime is 2131022161. The reversal of 2131022140 is 412201312.

It is a super-2 number, since 2×2131022140² = 9082510722340359200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210751 + ... + 220630.

It is an arithmetic number, because the mean of its divisors is an integer number (105688590).

Almost surely, 2^2131022140 is an apocalyptic number.

2131022140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131022140 is an abundant number, since it is smaller than the sum of its proper divisors (2942030180).

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

2131022140 is a wasteful number, since it uses less digits than its factorization.

2131022140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431422 (or 431420 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2131022140 is about 46162.9953534213. The cubic root of 2131022140 is about 1286.8541296954.

Adding to 2131022140 its reverse (412201312), we get a palindrome (2543223452).

The spelling of 2131022140 in words is "two billion, one hundred thirty-one million, twenty-two thousand, one hundred forty".