123020331220000 has 120 divisors (see below), whose sum is σ = 302718624981696. Its totient is φ = 49196725536000.

The previous prime is 123020331219997. The next prime is 123020331220027. The reversal of 123020331220000 is 22133020321.

It is a self number, because there is not a number n which added to its sum of digits gives 123020331220000.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 85829229 + ... + 87250771.

Almost surely, 2^{123020331220000} is an apocalyptic number.

123020331220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123020331220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151359312490848).

123020331220000 is an abundant number, since it is smaller than the sum of its proper divisors (179698293761696).

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

123020331220000 is an equidigital number, since it uses as much as digits as its factorization.

123020331220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425900 (or 1425877 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123020331220000 its reverse (22133020321), we get a palindrome (123042464240321).

The spelling of 123020331220000 in words is "one hundred twenty-three trillion, twenty billion, three hundred thirty-one million, two hundred twenty thousand".