30431131004 has 12 divisors (see below), whose sum is σ = 53412506784. Its totient is φ = 15170414784.

The previous prime is 30431130991. The next prime is 30431131043. The reversal of 30431131004 is 40013113403.

It is a super-2 number, since 2×30431131004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 11286164 + ... + 11288859.

It is an arithmetic number, because the mean of its divisors is an integer number (4451042232).

Almost surely, 2^30431131004 is an apocalyptic number.

It is an amenable number.

30431131004 is a deficient number, since it is larger than the sum of its proper divisors (22981375780).

30431131004 is a wasteful number, since it uses less digits than its factorization.

30431131004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22575364 (or 22575362 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30431131004 its reverse (40013113403), we get a palindrome (70444244407).

The spelling of 30431131004 in words is "thirty billion, four hundred thirty-one million, one hundred thirty-one thousand, four".