131123221554052 has 96 divisors (see below), whose sum is σ = 289691723059200. Its totient is φ = 51601335488640.

The previous prime is 131123221554041. The next prime is 131123221554071. The reversal of 131123221554052 is 250455122321131.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 15838363 + ... + 22651714.

It is an arithmetic number, because the mean of its divisors is an integer number (3017622115200).

Almost surely, 2^{131123221554052} is an apocalyptic number.

It is an amenable number.

131123221554052 is an abundant number, since it is smaller than the sum of its proper divisors (158568501505148).

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

131123221554052 is a wasteful number, since it uses less digits than its factorization.

131123221554052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38490306 (or 38490290 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 131123221554052 its reverse (250455122321131), we get a palindrome (381578343875183).

The spelling of 131123221554052 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, two hundred twenty-one million, five hundred fifty-four thousand, fifty-two".