13113360978 has 16 divisors (see below), whose sum is σ = 26269513536. Its totient is φ = 4363988400.

The previous prime is 13113360971. The next prime is 13113360979. The reversal of 13113360978 is 87906331131.

It is a super-2 number, since 2×13113360978² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13113360971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778998 + ... + 1786353.

It is an arithmetic number, because the mean of its divisors is an integer number (1641844596).

Almost surely, 2^13113360978 is an apocalyptic number.

13113360978 is an abundant number, since it is smaller than the sum of its proper divisors (13156152558).

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

13113360978 is a wasteful number, since it uses less digits than its factorization.

13113360978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565969.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 13113360978 in words is "thirteen billion, one hundred thirteen million, three hundred sixty thousand, nine hundred seventy-eight".