31000304104 has 128 divisors (see below), whose sum is σ = 73740222720. Its totient is φ = 11867904000.

The previous prime is 31000304063. The next prime is 31000304113. The reversal of 31000304104 is 40140300013.

It is a super-2 number, since 2×31000304104² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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, 8521774 + ... + 8525410.

It is an arithmetic number, because the mean of its divisors is an integer number (576095490).

Almost surely, 2^31000304104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31000304104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36870111360).

31000304104 is an abundant number, since it is smaller than the sum of its proper divisors (42739918616).

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

31000304104 is a wasteful number, since it uses less digits than its factorization.

31000304104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31000304104 its reverse (40140300013), we get a palindrome (71140604117).

The spelling of 31000304104 in words is "thirty-one billion, three hundred four thousand, one hundred four".