125113312345 has 48 divisors (see below), whose sum is σ = 178849332288. Its totient is φ = 83731294080.

The previous prime is 125113312309. The next prime is 125113312349. The reversal of 125113312345 is 543213311521.

It is not a de Polignac number, because 125113312345 - 2¹⁷ = 125113181273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125113312349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16125207 + ... + 16132963.

It is an arithmetic number, because the mean of its divisors is an integer number (3726027756).

Almost surely, 2^125113312345 is an apocalyptic number.

It is an amenable number.

125113312345 is a deficient number, since it is larger than the sum of its proper divisors (53736019943).

125113312345 is a wasteful number, since it uses less digits than its factorization.

125113312345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9350 (or 9343 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

Adding to 125113312345 its reverse (543213311521), we get a palindrome (668326623866).

The spelling of 125113312345 in words is "one hundred twenty-five billion, one hundred thirteen million, three hundred twelve thousand, three hundred forty-five".