100113133212 has 36 divisors (see below), whose sum is σ = 267949858176. Its totient is φ = 31408041600.

The previous prime is 100113133207. The next prime is 100113133231. The reversal of 100113133212 is 212331311001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 81791164 + ... + 81792387.

It is an arithmetic number, because the mean of its divisors is an integer number (7443051616).

Almost surely, 2^100113133212 is an apocalyptic number.

100113133212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100113133212 is an abundant number, since it is smaller than the sum of its proper divisors (167836724964).

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

100113133212 is a wasteful number, since it uses less digits than its factorization.

100113133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163583578 (or 163583573 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 100113133212 its reverse (212331311001), we get a palindrome (312444444213).

The spelling of 100113133212 in words is "one hundred billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred twelve".