30921130308 has 24 divisors (see below), whose sum is σ = 72190370560. Its totient is φ = 10301176800.

The previous prime is 30921130301. The next prime is 30921130313. The reversal of 30921130308 is 80303112903.

It is a super-2 number, since 2×30921130308² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30921130301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711343 + ... + 753558.

Almost surely, 2^30921130308 is an apocalyptic number.

It is an amenable number.

30921130308 is an abundant number, since it is smaller than the sum of its proper divisors (41269240252).

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

30921130308 is a wasteful number, since it uses less digits than its factorization.

30921130308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466667 (or 1466665 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 30921130308 in words is "thirty billion, nine hundred twenty-one million, one hundred thirty thousand, three hundred eight".