123242312400 has 60 divisors (see below), whose sum is σ = 394786211232. Its totient is φ = 32864616320.

The previous prime is 123242312393. The next prime is 123242312437. The reversal of 123242312400 is 4213242321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51349764 + ... + 51352163.

Almost surely, 2^123242312400 is an apocalyptic number.

123242312400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123242312400 is an abundant number, since it is smaller than the sum of its proper divisors (271543898832).

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

123242312400 is a wasteful number, since it uses less digits than its factorization.

123242312400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102701948 (or 102701937 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123242312400 its reverse (4213242321), we get a palindrome (127455554721).

The spelling of 123242312400 in words is "one hundred twenty-three billion, two hundred forty-two million, three hundred twelve thousand, four hundred".