100020131000 has 32 divisors (see below), whose sum is σ = 234047108880. Its totient is φ = 40008052000.

The previous prime is 100020130993. The next prime is 100020131021. The reversal of 100020131000 is 131020001.

It is a super-2 number, since 2×100020131000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50009066 + ... + 50011065.

Almost surely, 2^100020131000 is an apocalyptic number.

100020131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020131000 is an abundant number, since it is smaller than the sum of its proper divisors (134026977880).

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

100020131000 is a wasteful number, since it uses less digits than its factorization.

100020131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100020152 (or 100020138 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 100020131000 its reverse (131020001), we get a palindrome (100151151001).

The spelling of 100020131000 in words is "one hundred billion, twenty million, one hundred thirty-one thousand".