201212302031100 has 54 divisors (see below), whose sum is σ = 630688782258080. Its totient is φ = 53656613874720.

The previous prime is 201212302031057. The next prime is 201212302031123. The reversal of 201212302031100 is 1130203212102.

201212302031100 is a `hidden beast` number, since 2 + 0 + 121 + 230 + 2 + 0 + 311 + 0 + 0 = 666.

201212302031100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17 ways as a sum of consecutive naturals, for example, 111784611340 + ... + 111784613139.

Almost surely, 2^{201212302031100} is an apocalyptic number.

201212302031100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201212302031100 is an abundant number, since it is smaller than the sum of its proper divisors (429476480226980).

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

201212302031100 is a wasteful number, since it uses less digits than its factorization.

201212302031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223569224499 (or 223569224489 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201212302031100 its reverse (1130203212102), we get a palindrome (202342505243202).

The spelling of 201212302031100 in words is "two hundred one trillion, two hundred twelve billion, three hundred two million, thirty-one thousand, one hundred".