123012315335388 has 12 divisors (see below), whose sum is σ = 287028735782600. Its totient is φ = 41004105111792.

The previous prime is 123012315335269. The next prime is 123012315335389. The reversal of 123012315335388 is 883533513210321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×123012315335388² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012315335389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5125513138963 + ... + 5125513138986.

Almost surely, 2^{123012315335388} is an apocalyptic number.

It is an amenable number.

123012315335388 is an abundant number, since it is smaller than the sum of its proper divisors (164016420447212).

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

123012315335388 is a wasteful number, since it uses less digits than its factorization.

123012315335388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251026277956 (or 10251026277954 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 123012315335388 in words is "one hundred twenty-three trillion, twelve billion, three hundred fifteen million, three hundred thirty-five thousand, three hundred eighty-eight".