13012311104 has 28 divisors (see below), whose sum is σ = 27807560844. Its totient is φ = 6005681664.

The previous prime is 13012311079. The next prime is 13012311119. The reversal of 13012311104 is 40111321031.

It can be written as a sum of positive squares in 2 ways, for example, as 753392704 + 12258918400 = 27448^2 + 110720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7819067 + ... + 7820730.

It is an arithmetic number, because the mean of its divisors is an integer number (993127173).

Almost surely, 2^13012311104 is an apocalyptic number.

It is an amenable number.

13012311104 is an abundant number, since it is smaller than the sum of its proper divisors (14795249740).

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

13012311104 is a wasteful number, since it uses less digits than its factorization.

13012311104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15639822 (or 15639812 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13012311104 its reverse (40111321031), we get a palindrome (53123632135).

The spelling of 13012311104 in words is "thirteen billion, twelve million, three hundred eleven thousand, one hundred four".