100031131030 has 64 divisors (see below), whose sum is σ = 197880537600. Its totient is φ = 36238752000.

The previous prime is 100031130989. The next prime is 100031131033. The reversal of 100031131030 is 30131130001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 100031131030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100031131033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9831786 + ... + 9841954.

It is an arithmetic number, because the mean of its divisors is an integer number (3091883400).

Almost surely, 2^100031131030 is an apocalyptic number.

100031131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100031131030 is a deficient number, since it is larger than the sum of its proper divisors (97849406570).

100031131030 is a wasteful number, since it uses less digits than its factorization.

100031131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12469.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 100031131030 its reverse (30131130001), we get a palindrome (130162261031).

The spelling of 100031131030 in words is "one hundred billion, thirty-one million, one hundred thirty-one thousand, thirty".