30813497304 has 128 divisors (see below), whose sum is σ = 84520550400. Its totient is φ = 9324823680.

The previous prime is 30813497303. The next prime is 30813497327. The reversal of 30813497304 is 40379431803.

It is a super-2 number, since 2×30813497304² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30813497303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1445427 + ... + 1466589.

It is an arithmetic number, because the mean of its divisors is an integer number (660316800).

Almost surely, 2^30813497304 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 30813497304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42260275200).

30813497304 is an abundant number, since it is smaller than the sum of its proper divisors (53707053096).

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

30813497304 is a wasteful number, since it uses less digits than its factorization.

30813497304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21325 (or 21321 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 30813497304 in words is "thirty billion, eight hundred thirteen million, four hundred ninety-seven thousand, three hundred four".