201131320112 has 20 divisors (see below), whose sum is σ = 389716447920. Its totient is φ = 100559333568.

The previous prime is 201131320063. The next prime is 201131320141. The reversal of 201131320112 is 211023131102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127628 + ... + 646955.

It is an arithmetic number, because the mean of its divisors is an integer number (19485822396).

Almost surely, 2^201131320112 is an apocalyptic number.

It is an amenable number.

201131320112 is a deficient number, since it is larger than the sum of its proper divisors (188585127808).

201131320112 is a wasteful number, since it uses less digits than its factorization.

201131320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790820 (or 790814 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201131320112 its reverse (211023131102), we get a palindrome (412154451214).

The spelling of 201131320112 in words is "two hundred one billion, one hundred thirty-one million, three hundred twenty thousand, one hundred twelve".