123711564152 has 32 divisors (see below), whose sum is σ = 256823205120. Its totient is φ = 55393235040.

The previous prime is 123711564149. The next prime is 123711564199. The reversal of 123711564152 is 251465117321.

It is a super-2 number, since 2×123711564152² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10485248 + ... + 10497039.

It is an arithmetic number, because the mean of its divisors is an integer number (8025725160).

Almost surely, 2^123711564152 is an apocalyptic number.

It is an amenable number.

123711564152 is an abundant number, since it is smaller than the sum of its proper divisors (133111640968).

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

123711564152 is a wasteful number, since it uses less digits than its factorization.

123711564152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20982371 (or 20982367 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The spelling of 123711564152 in words is "one hundred twenty-three billion, seven hundred eleven million, five hundred sixty-four thousand, one hundred fifty-two".