2113102431 has 64 divisors (see below), whose sum is σ = 3700477440. Its totient is φ = 1177182720.

The previous prime is 2113102399. The next prime is 2113102451. The reversal of 2113102431 is 1342013112.

It is not a de Polignac number, because 2113102431 - 2⁵ = 2113102399 is a prime.

It is a super-2 number, since 2×2113102431² = 8930403767796219522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113102451) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 212241 + ... + 221973.

It is an arithmetic number, because the mean of its divisors is an integer number (57819960).

Almost surely, 2^2113102431 is an apocalyptic number.

2113102431 is a deficient number, since it is larger than the sum of its proper divisors (1587375009).

2113102431 is a wasteful number, since it uses less digits than its factorization.

2113102431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9813 (or 9807 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2113102431 is about 45968.4938952757. The cubic root of 2113102431 is about 1283.2369308744.

Adding to 2113102431 its reverse (1342013112), we get a palindrome (3455115543).

The spelling of 2113102431 in words is "two billion, one hundred thirteen million, one hundred two thousand, four hundred thirty-one".