123021333212120 has 256 divisors, whose sum is σ = 319303038320640. Its totient is φ = 41786132940288.

The previous prime is 123021333212111. The next prime is 123021333212153. The reversal of 123021333212120 is 21212333120321.

It is a self number, because there is not a number n which added to its sum of digits gives 123021333212120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10899377117 + ... + 10899388403.

It is an arithmetic number, because the mean of its divisors is an integer number (1247277493440).

Almost surely, 2^{123021333212120} is an apocalyptic number.

123021333212120 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 123021333212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159651519160320).

123021333212120 is an abundant number, since it is smaller than the sum of its proper divisors (196281705108520).

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

123021333212120 is a wasteful number, since it uses less digits than its factorization.

123021333212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12374 (or 12370 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 123021333212120 its reverse (21212333120321), we get a palindrome (144233666332441).

The spelling of 123021333212120 in words is "one hundred twenty-three trillion, twenty-one billion, three hundred thirty-three million, two hundred twelve thousand, one hundred twenty".