123021331332 has 12 divisors (see below), whose sum is σ = 287049773136. Its totient is φ = 41007110440.

The previous prime is 123021331319. The next prime is 123021331399. The reversal of 123021331332 is 233133120321.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5125888794 + ... + 5125888817.

It is an arithmetic number, because the mean of its divisors is an integer number (23920814428).

Almost surely, 2^123021331332 is an apocalyptic number.

123021331332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123021331332 is an abundant number, since it is smaller than the sum of its proper divisors (164028441804).

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

123021331332 is a wasteful number, since it uses less digits than its factorization.

123021331332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251777618 (or 10251777616 counting only the distinct ones).

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

Adding to 123021331332 its reverse (233133120321), we get a palindrome (356154451653).

The spelling of 123021331332 in words is "one hundred twenty-three billion, twenty-one million, three hundred thirty-one thousand, three hundred thirty-two".