131220102192 has 40 divisors (see below), whose sum is σ = 356826596160. Its totient is φ = 41437926720.

The previous prime is 131220102137. The next prime is 131220102193. The reversal of 131220102192 is 291201022131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (131220102193) 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, 71939934 + ... + 71941757.

It is an arithmetic number, because the mean of its divisors is an integer number (8920664904).

Almost surely, 2^131220102192 is an apocalyptic number.

131220102192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131220102192 is an abundant number, since it is smaller than the sum of its proper divisors (225606493968).

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

131220102192 is a wasteful number, since it uses less digits than its factorization.

131220102192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143881721 (or 143881715 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 131220102192 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred two thousand, one hundred ninety-two".