125415424031 has 4 divisors (see below), whose sum is σ = 125416151352. Its totient is φ = 125414696712.

The previous prime is 125415423989. The next prime is 125415424039. The reversal of 125415424031 is 130424514521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 125415424031 - 2⁶ = 125415423967 is a prime.

It is a super-2 number, since 2×125415424031² (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 (125415424039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57836 + ... + 504158.

It is an arithmetic number, because the mean of its divisors is an integer number (31354037838).

Almost surely, 2^125415424031 is an apocalyptic number.

125415424031 is a deficient number, since it is larger than the sum of its proper divisors (727321).

125415424031 is an equidigital number, since it uses as much as digits as its factorization.

125415424031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727320.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 125415424031 its reverse (130424514521), we get a palindrome (255839938552).

The spelling of 125415424031 in words is "one hundred twenty-five billion, four hundred fifteen million, four hundred twenty-four thousand, thirty-one".