2113012431 has 12 divisors (see below), whose sum is σ = 3060929352. Its totient is φ = 1404613296.

The previous prime is 2113012403. The next prime is 2113012441. The reversal of 2113012431 is 1342103112.

It is not a de Polignac number, because 2113012431 - 2¹⁸ = 2112750287 is a prime.

It is a super-2 number, since 2×2113012431² = 8929643067121059522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113012441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335176 + ... + 341421.

It is an arithmetic number, because the mean of its divisors is an integer number (255077446).

Almost surely, 2^2113012431 is an apocalyptic number.

2113012431 is a deficient number, since it is larger than the sum of its proper divisors (947916921).

2113012431 is a wasteful number, since it uses less digits than its factorization.

2113012431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676950 (or 676947 counting only the distinct ones).

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

The square root of 2113012431 is about 45967.5149534973. The cubic root of 2113012431 is about 1283.2187123281.

Adding to 2113012431 its reverse (1342103112), we get a palindrome (3455115543).

The spelling of 2113012431 in words is "two billion, one hundred thirteen million, twelve thousand, four hundred thirty-one".