125022015431 has 2 divisors, whose sum is σ = 125022015432. Its totient is φ = 125022015430.

The previous prime is 125022015401. The next prime is 125022015473. The reversal of 125022015431 is 134510220521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125022015431 - 2¹⁰ = 125022014407 is a prime.

It is a super-2 number, since 2×125022015431² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125022015431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125022015401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62511007715 + 62511007716.

It is an arithmetic number, because the mean of its divisors is an integer number (62511007716).

Almost surely, 2^125022015431 is an apocalyptic number.

125022015431 is a deficient number, since it is larger than the sum of its proper divisors (1).

125022015431 is an equidigital number, since it uses as much as digits as its factorization.

125022015431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 125022015431 its reverse (134510220521), we get a palindrome (259532235952).

The spelling of 125022015431 in words is "one hundred twenty-five billion, twenty-two million, fifteen thousand, four hundred thirty-one".