201131100012 has 24 divisors (see below), whose sum is σ = 481989844336. Its totient is φ = 65231707968.

The previous prime is 201131099999. The next prime is 201131100019. The reversal of 201131100012 is 210001131102.

201131100012 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 (12).

It is not an unprimeable number, because it can be changed into a prime (201131100019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226498543 + ... + 226499430.

Almost surely, 2^201131100012 is an apocalyptic number.

It is an amenable number.

201131100012 is an abundant number, since it is smaller than the sum of its proper divisors (280858744324).

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

201131100012 is a wasteful number, since it uses less digits than its factorization.

201131100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452998017 (or 452998015 counting only the distinct ones).

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

Adding to 201131100012 its reverse (210001131102), we get a palindrome (411132231114).

The spelling of 201131100012 in words is "two hundred one billion, one hundred thirty-one million, one hundred thousand, twelve".