123405623652036 has 24 divisors (see below), whose sum is σ = 314123405660064. Its totient is φ = 37395643530880.

The previous prime is 123405623652023. The next prime is 123405623652037. The reversal of 123405623652036 is 630256326504321.

It is not an unprimeable number, because it can be changed into a prime (123405623652037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467445544005 + ... + 467445544268.

It is an arithmetic number, because the mean of its divisors is an integer number (13088475235836).

Almost surely, 2^{123405623652036} is an apocalyptic number.

It is an amenable number.

123405623652036 is an abundant number, since it is smaller than the sum of its proper divisors (190717782008028).

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

123405623652036 is a wasteful number, since it uses less digits than its factorization.

123405623652036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934891088291 (or 934891088289 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 123405623652036 in words is "one hundred twenty-three trillion, four hundred five billion, six hundred twenty-three million, six hundred fifty-two thousand, thirty-six".