123120232320 has 64 divisors (see below), whose sum is σ = 392445746640. Its totient is φ = 32832061440.

The previous prime is 123120232297. The next prime is 123120232343. The reversal of 123120232320 is 23232021321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123120232297) and next prime (123120232343).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32060641 + ... + 32064480.

Almost surely, 2^123120232320 is an apocalyptic number.

123120232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123120232320 is an abundant number, since it is smaller than the sum of its proper divisors (269325514320).

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

123120232320 is an equidigital number, since it uses as much as digits as its factorization.

123120232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64125143 (or 64125131 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123120232320 its reverse (23232021321), we get a palindrome (146352253641).

The spelling of 123120232320 in words is "one hundred twenty-three billion, one hundred twenty million, two hundred thirty-two thousand, three hundred twenty".