123512020545304 has 32 divisors (see below), whose sum is σ = 232101177984000. Its totient is φ = 61618391426592.

The previous prime is 123512020545289. The next prime is 123512020545337. The reversal of 123512020545304 is 403545020215321.

It is a happy number.

It is a congruent number.

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, 53083927 + ... + 55361785.

It is an arithmetic number, because the mean of its divisors is an integer number (7253161812000).

Almost surely, 2^{123512020545304} is an apocalyptic number.

It is an amenable number.

123512020545304 is a deficient number, since it is larger than the sum of its proper divisors (108589157438696).

123512020545304 is a wasteful number, since it uses less digits than its factorization.

123512020545304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292967 (or 2292963 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 123512020545304 in words is "one hundred twenty-three trillion, five hundred twelve billion, twenty million, five hundred forty-five thousand, three hundred four".