125042030513 has 4 divisors (see below), whose sum is σ = 125090293248. Its totient is φ = 124993767780.

The previous prime is 125042030507. The next prime is 125042030567. The reversal of 125042030513 is 315030240521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315030240521 = 17827 ⋅17671523.

It is a cyclic number.

It is not a de Polignac number, because 125042030513 - 2⁸ = 125042030257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125042330513) 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, 24127481 + ... + 24132662.

It is an arithmetic number, because the mean of its divisors is an integer number (31272573312).

Almost surely, 2^125042030513 is an apocalyptic number.

It is an amenable number.

125042030513 is a deficient number, since it is larger than the sum of its proper divisors (48262735).

125042030513 is an equidigital number, since it uses as much as digits as its factorization.

125042030513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48262734.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 125042030513 in words is "one hundred twenty-five billion, forty-two million, thirty thousand, five hundred thirteen".