30131032100 has 72 divisors (see below), whose sum is σ = 70748263488. Its totient is φ = 11072476800.

The previous prime is 30131032097. The next prime is 30131032133. The reversal of 30131032100 is 123013103.

It is a super-2 number, since 2×30131032100² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219377 + ... + 329223.

Almost surely, 2^30131032100 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 30131032100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35374131744).

30131032100 is an abundant number, since it is smaller than the sum of its proper divisors (40617231388).

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

30131032100 is a wasteful number, since it uses less digits than its factorization.

30131032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110085 (or 110078 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 30131032100 its reverse (123013103), we get a palindrome (30254045203).

The spelling of 30131032100 in words is "thirty billion, one hundred thirty-one million, thirty-two thousand, one hundred".