131423402321125 has 16 divisors (see below), whose sum is σ = 164550661539264. Its totient is φ = 104796250419600.

The previous prime is 131423402321083. The next prime is 131423402321137. The reversal of 131423402321125 is 521123204324131.

It is a de Polignac number, because none of the positive numbers 2^k-131423402321125 is a prime.

It is a super-2 number, since 2×131423402321125² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1712318659 + ... + 1712395408.

It is an arithmetic number, because the mean of its divisors is an integer number (10284416346204).

Almost surely, 2^{131423402321125} is an apocalyptic number.

It is an amenable number.

131423402321125 is a deficient number, since it is larger than the sum of its proper divisors (33127259218139).

131423402321125 is an equidigital number, since it uses as much as digits as its factorization.

131423402321125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424714389 (or 3424714379 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 131423402321125 its reverse (521123204324131), we get a palindrome (652546606645256).

The spelling of 131423402321125 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, four hundred two million, three hundred twenty-one thousand, one hundred twenty-five".