123020313232 has 80 divisors (see below), whose sum is σ = 252624456000. Its totient is φ = 57872835072.

The previous prime is 123020313223. The next prime is 123020313239. The reversal of 123020313232 is 232313020321.

It is not an unprimeable number, because it can be changed into a prime (123020313239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30837894 + ... + 30841882.

It is an arithmetic number, because the mean of its divisors is an integer number (3157805700).

Almost surely, 2^123020313232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123020313232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126312228000).

123020313232 is an abundant number, since it is smaller than the sum of its proper divisors (129604142768).

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

123020313232 is a wasteful number, since it uses less digits than its factorization.

123020313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4688 (or 4682 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123020313232 its reverse (232313020321), we get a palindrome (355333333553).

The spelling of 123020313232 in words is "one hundred twenty-three billion, twenty million, three hundred thirteen thousand, two hundred thirty-two".