30997882930 has 16 divisors (see below), whose sum is σ = 63767073600. Its totient is φ = 10627845552.

The previous prime is 30997882913. The next prime is 30997882933. The reversal of 30997882930 is 3928879903.

It is a super-2 number, since 2×30997882930² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30997882933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221413380 + ... + 221413519.

It is an arithmetic number, because the mean of its divisors is an integer number (3985442100).

Almost surely, 2^30997882930 is an apocalyptic number.

30997882930 is an abundant number, since it is smaller than the sum of its proper divisors (32769190670).

30997882930 is a wasteful number, since it uses less digits than its factorization.

30997882930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442826913.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 30997882930 in words is "thirty billion, nine hundred ninety-seven million, eight hundred eighty-two thousand, nine hundred thirty".