125203302530 has 16 divisors (see below), whose sum is σ = 230607013824. Its totient is φ = 48916638960.

The previous prime is 125203302473. The next prime is 125203302547. The reversal of 125203302530 is 35203302521.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125203302530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145584806 + ... + 145585665.

It is an arithmetic number, because the mean of its divisors is an integer number (14412938364).

Almost surely, 2^125203302530 is an apocalyptic number.

125203302530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125203302530 is a deficient number, since it is larger than the sum of its proper divisors (105403711294).

125203302530 is a wasteful number, since it uses less digits than its factorization.

125203302530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291170521.

The product of its (nonzero) digits is 5400, while the sum is 26.

Subtracting from 125203302530 its reverse (35203302521), we obtain a palindrome (90000000009).

The spelling of 125203302530 in words is "one hundred twenty-five billion, two hundred three million, three hundred two thousand, five hundred thirty".