123330311232 has 56 divisors (see below), whose sum is σ = 326604148416. Its totient is φ = 41073228288.

The previous prime is 123330311231. The next prime is 123330311261. The reversal of 123330311232 is 232113033321.

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

It is not an unprimeable number, because it can be changed into a prime (123330311231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 73068 + ... + 501995.

It is an arithmetic number, because the mean of its divisors is an integer number (5832216936).

Almost surely, 2^123330311232 is an apocalyptic number.

123330311232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123330311232 is an abundant number, since it is smaller than the sum of its proper divisors (203273837184).

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

123330311232 is a wasteful number, since it uses less digits than its factorization.

123330311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576195 (or 576185 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123330311232 its reverse (232113033321), we get a palindrome (355443344553).

The spelling of 123330311232 in words is "one hundred twenty-three billion, three hundred thirty million, three hundred eleven thousand, two hundred thirty-two".