1255271823231 has 16 divisors (see below), whose sum is σ = 1689783295200. Its totient is φ = 828810776448.

The previous prime is 1255271823227. The next prime is 1255271823287. The reversal of 1255271823231 is 1323281725521.

It is not a de Polignac number, because 1255271823231 - 2² = 1255271823227 is a prime.

It is a super-2 number, since 2×1255271823231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255271823131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76216 + ... + 1586301.

It is an arithmetic number, because the mean of its divisors is an integer number (105611455950).

Almost surely, 2^{1255271823231} is an apocalyptic number.

1255271823231 is a deficient number, since it is larger than the sum of its proper divisors (434511471969).

1255271823231 is a wasteful number, since it uses less digits than its factorization.

1255271823231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664938.

The product of its digits is 201600, while the sum is 42.

The spelling of 1255271823231 in words is "one trillion, two hundred fifty-five billion, two hundred seventy-one million, eight hundred twenty-three thousand, two hundred thirty-one".