13012043031 has 24 divisors (see below), whose sum is σ = 20938925280. Its totient is φ = 7731291456.

The previous prime is 13012043021. The next prime is 13012043047. The reversal of 13012043031 is 13034021031.

It is not a de Polignac number, because 13012043031 - 2¹³ = 13012034839 is a prime.

It is a super-2 number, since 2×13012043031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13012042995 and 13012043013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012043021) 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, 1914091 + ... + 1920876.

It is an arithmetic number, because the mean of its divisors is an integer number (872455220).

Almost surely, 2^13012043031 is an apocalyptic number.

13012043031 is a deficient number, since it is larger than the sum of its proper divisors (7926882249).

13012043031 is a wasteful number, since it uses less digits than its factorization.

13012043031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835015 (or 3835012 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13012043031 its reverse (13034021031), we get a palindrome (26046064062).

The spelling of 13012043031 in words is "thirteen billion, twelve million, forty-three thousand, thirty-one".