123307566107236 has 81 divisors (see below), whose sum is σ = 251789412389529. Its totient is φ = 52684397574816.

The previous prime is 123307566107137. The next prime is 123307566107237. The reversal of 123307566107236 is 632701665703321.

The square root of 123307566107236 is 11104394.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 29108118297636 + 94199447809600 = 5395194^2 + 9705640^2 .

It is not an unprimeable number, because it can be changed into a prime (123307566107237) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 60474528705 + ... + 60474530743.

Almost surely, 2^{123307566107236} is an apocalyptic number.

123307566107236 is the 11104394-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123307566107236

123307566107236 is an abundant number, since it is smaller than the sum of its proper divisors (128481846282293).

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

123307566107236 is an frugal number, since it uses more digits than its factorization.

123307566107236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874 (or 2437 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 52.

The spelling of 123307566107236 in words is "one hundred twenty-three trillion, three hundred seven billion, five hundred sixty-six million, one hundred seven thousand, two hundred thirty-six".