125412402431 has 4 divisors (see below), whose sum is σ = 132789602592. Its totient is φ = 118035202272.

The previous prime is 125412402419. The next prime is 125412402449. The reversal of 125412402431 is 134204214521.

It is a happy number.

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 125412402431 - 2³⁴ = 108232533247 is a prime.

It is a super-2 number, since 2×125412402431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125412402394 and 125412402403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125412402491) 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, 3688600055 + ... + 3688600088.

It is an arithmetic number, because the mean of its divisors is an integer number (33197400648).

Almost surely, 2^125412402431 is an apocalyptic number.

125412402431 is a deficient number, since it is larger than the sum of its proper divisors (7377200161).

125412402431 is an equidigital number, since it uses as much as digits as its factorization.

125412402431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377200160.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 125412402431 its reverse (134204214521), we get a palindrome (259616616952).

The spelling of 125412402431 in words is "one hundred twenty-five billion, four hundred twelve million, four hundred two thousand, four hundred thirty-one".