128371752107131 has 12 divisors (see below), whose sum is σ = 144518555309968. Its totient is φ = 113344958376144.

The previous prime is 128371752107113. The next prime is 128371752107173. The reversal of 128371752107131 is 131701257173821.

It is not a de Polignac number, because 128371752107131 - 2⁵ = 128371752107099 is a prime.

It is a super-2 number, since 2×128371752107131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128371752107111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9333405375 + ... + 9333419128.

Almost surely, 2^{128371752107131} is an apocalyptic number.

128371752107131 is a deficient number, since it is larger than the sum of its proper divisors (16146803202837).

128371752107131 is a wasteful number, since it uses less digits than its factorization.

128371752107131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18666824562 (or 18666824539 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 128371752107131 in words is "one hundred twenty-eight trillion, three hundred seventy-one billion, seven hundred fifty-two million, one hundred seven thousand, one hundred thirty-one".