13111031004 has 96 divisors (see below), whose sum is σ = 32432762880. Its totient is φ = 4115596800.

The previous prime is 13111030981. The next prime is 13111031009. The reversal of 13111031004 is 40013011131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111031009) 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 31 ways as a sum of consecutive naturals, for example, 7670902 + ... + 7672610.

It is an arithmetic number, because the mean of its divisors is an integer number (337841280).

Almost surely, 2^13111031004 is an apocalyptic number.

It is an amenable number.

13111031004 is an abundant number, since it is smaller than the sum of its proper divisors (19321731876).

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

13111031004 is a wasteful number, since it uses less digits than its factorization.

13111031004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13111031004 its reverse (40013011131), we get a palindrome (53124042135).

The spelling of 13111031004 in words is "thirteen billion, one hundred eleven million, thirty-one thousand, four".