231130032100 has 72 divisors (see below), whose sum is σ = 549015985728. Its totient is φ = 83760316800.

The previous prime is 231130032071. The next prime is 231130032139. The reversal of 231130032100 is 1230031132.

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, 36264 + ... + 680863.

It is an arithmetic number, because the mean of its divisors is an integer number (7625222024).

Almost surely, 2^231130032100 is an apocalyptic number.

231130032100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231130032100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274507992864).

231130032100 is an abundant number, since it is smaller than the sum of its proper divisors (317885953628).

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

231130032100 is a wasteful number, since it uses less digits than its factorization.

231130032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717445 (or 717438 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 231130032100 its reverse (1230031132), we get a palindrome (232360063232).

The spelling of 231130032100 in words is "two hundred thirty-one billion, one hundred thirty million, thirty-two thousand, one hundred".