123365115552 has 96 divisors (see below), whose sum is σ = 372797050752. Its totient is φ = 34989871104.

The previous prime is 123365115541. The next prime is 123365115557. The reversal of 123365115552 is 255511563321.

123365115552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 123365115552.

It is not an unprimeable number, because it can be changed into a prime (123365115557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577933 + ... + 762060.

It is an arithmetic number, because the mean of its divisors is an integer number (3883302612).

Almost surely, 2^123365115552 is an apocalyptic number.

123365115552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123365115552 is an abundant number, since it is smaller than the sum of its proper divisors (249431935200).

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

123365115552 is a wasteful number, since it uses less digits than its factorization.

123365115552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340150 (or 1340142 counting only the distinct ones).

The product of its digits is 135000, while the sum is 39.

Adding to 123365115552 its reverse (255511563321), we get a palindrome (378876678873).

The spelling of 123365115552 in words is "one hundred twenty-three billion, three hundred sixty-five million, one hundred fifteen thousand, five hundred fifty-two".