12123393804 has 72 divisors (see below), whose sum is σ = 33324939648. Its totient is φ = 3700615680.

The previous prime is 12123393781. The next prime is 12123393869. The reversal of 12123393804 is 40839332121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245052 + ... + 290339.

It is an arithmetic number, because the mean of its divisors is an integer number (462846384).

Almost surely, 2^12123393804 is an apocalyptic number.

It is an amenable number.

12123393804 is an abundant number, since it is smaller than the sum of its proper divisors (21201545844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123393804 is a wasteful number, since it uses less digits than its factorization.

12123393804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535455 (or 535450 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 12123393804 in words is "twelve billion, one hundred twenty-three million, three hundred ninety-three thousand, eight hundred four".