100133111020 has 24 divisors (see below), whose sum is σ = 210438051264. Its totient is φ = 40023050496.

The previous prime is 100133111009. The next prime is 100133111027. The reversal of 100133111020 is 20111331001.

It is not an unprimeable number, because it can be changed into a prime (100133111027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859917 + ... + 1912996.

It is an arithmetic number, because the mean of its divisors is an integer number (8768252136).

Almost surely, 2^100133111020 is an apocalyptic number.

100133111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100133111020 is an abundant number, since it is smaller than the sum of its proper divisors (110304940244).

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

100133111020 is a wasteful number, since it uses less digits than its factorization.

100133111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774249 (or 3774247 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 100133111020 its reverse (20111331001), we get a palindrome (120244442021).

The spelling of 100133111020 in words is "one hundred billion, one hundred thirty-three million, one hundred eleven thousand, twenty".