123315051204 has 36 divisors (see below), whose sum is σ = 311723717760. Its totient is φ = 41103609840.

The previous prime is 123315051193. The next prime is 123315051229. The reversal of 123315051204 is 402150513321.

123315051204 is a `hidden beast` number, since 1 + 2 + 3 + 31 + 505 + 120 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1951749 + ... + 2013939.

It is an arithmetic number, because the mean of its divisors is an integer number (8658992160).

Almost surely, 2^123315051204 is an apocalyptic number.

It is an amenable number.

123315051204 is an abundant number, since it is smaller than the sum of its proper divisors (188408666556).

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

123315051204 is a wasteful number, since it uses less digits than its factorization.

123315051204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117280 (or 117275 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 123315051204 its reverse (402150513321), we get a palindrome (525465564525).

The spelling of 123315051204 in words is "one hundred twenty-three billion, three hundred fifteen million, fifty-one thousand, two hundred four".