100031232100 has 18 divisors (see below), whose sum is σ = 217067773874. Its totient is φ = 40012492800.

The previous prime is 100031232097. The next prime is 100031232101. The reversal of 100031232100 is 1232130001.

It can be written as a sum of positive squares in 3 ways, for example, as 17790757924 + 82240474176 = 133382^2 + 286776^2 .

It is not an unprimeable number, because it can be changed into a prime (100031232101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500156061 + ... + 500156260.

Almost surely, 2^100031232100 is an apocalyptic number.

100031232100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100031232100 is an abundant number, since it is smaller than the sum of its proper divisors (117036541774).

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

100031232100 is a wasteful number, since it uses less digits than its factorization.

100031232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000312335 (or 1000312328 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100031232100 its reverse (1232130001), we get a palindrome (101263362101).

The spelling of 100031232100 in words is "one hundred billion, thirty-one million, two hundred thirty-two thousand, one hundred".