2101341240 has 96 divisors (see below), whose sum is σ = 6892142400. Its totient is φ = 555206400.

The previous prime is 2101341199. The next prime is 2101341241. The reversal of 2101341240 is 421431012.

2101341240 is a `hidden beast` number, since 210 + 1 + 3 + 412 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101341241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12465 + ... + 66015.

It is an arithmetic number, because the mean of its divisors is an integer number (71793150).

Almost surely, 2^2101341240 is an apocalyptic number.

2101341240 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 2101341240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3446071200).

2101341240 is an abundant number, since it is smaller than the sum of its proper divisors (4790801160).

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

2101341240 is a wasteful number, since it uses less digits than its factorization.

2101341240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53677 (or 53670 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2101341240 is about 45840.3887418072. The cubic root of 2101341240 is about 1280.8517361729.

Adding to 2101341240 its reverse (421431012), we get a palindrome (2522772252).

The spelling of 2101341240 in words is "two billion, one hundred one million, three hundred forty-one thousand, two hundred forty".