131223053331552 has 192 divisors, whose sum is σ = 428714904522240. Its totient is φ = 34219420545024.

The previous prime is 131223053331547. The next prime is 131223053331553. The reversal of 131223053331552 is 255133350322131.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 131223053331552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131223053331553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83609878 + ... + 85164885.

It is an arithmetic number, because the mean of its divisors is an integer number (2232890127720).

Almost surely, 2^{131223053331552} is an apocalyptic number.

131223053331552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131223053331552 is an abundant number, since it is smaller than the sum of its proper divisors (297491851190688).

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

131223053331552 is a wasteful number, since it uses less digits than its factorization.

131223053331552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168774885 (or 168774877 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 39.

The spelling of 131223053331552 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, fifty-three million, three hundred thirty-one thousand, five hundred fifty-two".