20100131300100 has 36 divisors (see below), whose sum is σ = 58156379895824. Its totient is φ = 5360035013280.

The previous prime is 20100131300099. The next prime is 20100131300113. The reversal of 20100131300100 is 100313100102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33500218534 + ... + 33500219133.

Almost surely, 2^{20100131300100} is an apocalyptic number.

20100131300100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100131300100 is an abundant number, since it is smaller than the sum of its proper divisors (38056248595724).

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

20100131300100 is a wasteful number, since it uses less digits than its factorization.

20100131300100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67000437684 (or 67000437677 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 20100131300100 its reverse (100313100102), we get a palindrome (20200444400202).

The spelling of 20100131300100 in words is "twenty trillion, one hundred billion, one hundred thirty-one million, three hundred thousand, one hundred".