125890232831 has 4 divisors (see below), whose sum is σ = 137334799464. Its totient is φ = 114445666200.

The previous prime is 125890232789. The next prime is 125890232861. The reversal of 125890232831 is 138232098521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125890232831 - 2²² = 125886038527 is a prime.

It is a super-2 number, since 2×125890232831² (a number of 23 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 (125890232861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5722283300 + ... + 5722283321.

It is an arithmetic number, because the mean of its divisors is an integer number (34333699866).

Almost surely, 2^125890232831 is an apocalyptic number.

125890232831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125890232831 is a deficient number, since it is larger than the sum of its proper divisors (11444566633).

125890232831 is a wasteful number, since it uses less digits than its factorization.

125890232831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11444566632.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 125890232831 in words is "one hundred twenty-five billion, eight hundred ninety million, two hundred thirty-two thousand, eight hundred thirty-one".