123525044013 has 16 divisors (see below), whose sum is σ = 188366376960. Its totient is φ = 70534087536.

The previous prime is 123525043979. The next prime is 123525044017. The reversal of 123525044013 is 310440525321.

It is not a de Polignac number, because 123525044013 - 2²⁶ = 123457935149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123525044017) 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 15 ways as a sum of consecutive naturals, for example, 2122773 + ... + 2180186.

It is an arithmetic number, because the mean of its divisors is an integer number (11772898560).

Almost surely, 2^123525044013 is an apocalyptic number.

It is an amenable number.

123525044013 is a deficient number, since it is larger than the sum of its proper divisors (64841332947).

123525044013 is a wasteful number, since it uses less digits than its factorization.

123525044013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304336.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 123525044013 its reverse (310440525321), we get a palindrome (433965569334).

The spelling of 123525044013 in words is "one hundred twenty-three billion, five hundred twenty-five million, forty-four thousand, thirteen".