31144102404 has 12 divisors (see below), whose sum is σ = 72669572304. Its totient is φ = 10381367464.

The previous prime is 31144102399. The next prime is 31144102441. The reversal of 31144102404 is 40420144113.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×31144102404² (a number of 22 digits) contains 22 as substring.

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, 1297670922 + ... + 1297670945.

It is an arithmetic number, because the mean of its divisors is an integer number (6055797692).

Almost surely, 2^31144102404 is an apocalyptic number.

It is an amenable number.

31144102404 is an abundant number, since it is smaller than the sum of its proper divisors (41525469900).

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

31144102404 is a wasteful number, since it uses less digits than its factorization.

31144102404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595341874 (or 2595341872 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31144102404 its reverse (40420144113), we get a palindrome (71564246517).

The spelling of 31144102404 in words is "thirty-one billion, one hundred forty-four million, one hundred two thousand, four hundred four".