13111012604 has 12 divisors (see below), whose sum is σ = 23564387784. Its totient is φ = 6378330384.

The previous prime is 13111012601. The next prime is 13111012609. The reversal of 13111012604 is 40621011131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111012601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44293814 + ... + 44294109.

It is an arithmetic number, because the mean of its divisors is an integer number (1963698982).

Almost surely, 2^13111012604 is an apocalyptic number.

It is an amenable number.

13111012604 is a deficient number, since it is larger than the sum of its proper divisors (10453375180).

13111012604 is a wasteful number, since it uses less digits than its factorization.

13111012604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88587964 (or 88587962 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13111012604 its reverse (40621011131), we get a palindrome (53732023735).

The spelling of 13111012604 in words is "thirteen billion, one hundred eleven million, twelve thousand, six hundred four".