131260423266421 has 24 divisors (see below), whose sum is σ = 147749521772160. Its totient is φ = 116165104277376.

The previous prime is 131260423266403. The next prime is 131260423266439. The reversal of 131260423266421 is 124662324062131.

It is an interprime number because it is at equal distance from previous prime (131260423266403) and next prime (131260423266439).

It is not a de Polignac number, because 131260423266421 - 2²⁵ = 131260389711989 is a prime.

It is a super-2 number, since 2×131260423266421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131260423266461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123163005 + ... + 124224178.

It is an arithmetic number, because the mean of its divisors is an integer number (6156230073840).

Almost surely, 2^{131260423266421} is an apocalyptic number.

It is an amenable number.

131260423266421 is a deficient number, since it is larger than the sum of its proper divisors (16489098505739).

131260423266421 is a wasteful number, since it uses less digits than its factorization.

131260423266421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247387305 (or 247387282 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 131260423266421 in words is "one hundred thirty-one trillion, two hundred sixty billion, four hundred twenty-three million, two hundred sixty-six thousand, four hundred twenty-one".