131223972079144 has 32 divisors (see below), whose sum is σ = 281195156263680. Its totient is φ = 56238659100864.

The previous prime is 131223972079103. The next prime is 131223972079163. The reversal of 131223972079144 is 441970279322131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13923009 + ... + 21361135.

It is an arithmetic number, because the mean of its divisors is an integer number (8787348633240).

Almost surely, 2^{131223972079144} is an apocalyptic number.

131223972079144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131223972079144 is an abundant number, since it is smaller than the sum of its proper divisors (149971184184536).

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

131223972079144 is a wasteful number, since it uses less digits than its factorization.

131223972079144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7753177 (or 7753173 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 131223972079144 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, nine hundred seventy-two million, seventy-nine thousand, one hundred forty-four".