103131120132012 has 72 divisors (see below), whose sum is σ = 280539859245744. Its totient is φ = 29401557147648.

The previous prime is 103131120131953. The next prime is 103131120132023. The reversal of 103131120132012 is 210231021131301.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 103131120132012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191627413 + ... + 192164844.

Almost surely, 2^{103131120132012} is an apocalyptic number.

103131120132012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103131120132012 is an abundant number, since it is smaller than the sum of its proper divisors (177408739113732).

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

103131120132012 is a wasteful number, since it uses less digits than its factorization.

103131120132012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383792735 (or 383792726 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 103131120132012 its reverse (210231021131301), we get a palindrome (313362141263313).

The spelling of 103131120132012 in words is "one hundred three trillion, one hundred thirty-one billion, one hundred twenty million, one hundred thirty-two thousand, twelve".