123726312324 has 48 divisors (see below), whose sum is σ = 339640862400. Its totient is φ = 38816097408.

The previous prime is 123726312323. The next prime is 123726312331. The reversal of 123726312324 is 423213627321.

123726312324 is a `hidden beast` number, since 12 + 3 + 7 + 2 + 6 + 312 + 324 = 666.

It is a super-2 number, since 2×123726312324² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (123726312323) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33692694 + ... + 33696365.

It is an arithmetic number, because the mean of its divisors is an integer number (7075851300).

Almost surely, 2^123726312324 is an apocalyptic number.

It is an amenable number.

123726312324 is an abundant number, since it is smaller than the sum of its proper divisors (215914550076).

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

123726312324 is a wasteful number, since it uses less digits than its factorization.

123726312324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67389089 (or 67389081 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

Adding to 123726312324 its reverse (423213627321), we get a palindrome (546939939645).

The spelling of 123726312324 in words is "one hundred twenty-three billion, seven hundred twenty-six million, three hundred twelve thousand, three hundred twenty-four".