123011220020321 has 8 divisors (see below), whose sum is σ = 128389658311104. Its totient is φ = 117635292094320.

The previous prime is 123011220020317. The next prime is 123011220020323. The reversal of 123011220020321 is 123020022110321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123011220020321 - 2² = 123011220020317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123011220020293 and 123011220020302.

It is not an unprimeable number, because it can be changed into a prime (123011220020323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627491051 + ... + 627687056.

It is an arithmetic number, because the mean of its divisors is an integer number (16048707288888).

Almost surely, 2^{123011220020321} is an apocalyptic number.

It is an amenable number.

123011220020321 is a deficient number, since it is larger than the sum of its proper divisors (5378438290783).

123011220020321 is a wasteful number, since it uses less digits than its factorization.

123011220020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255182391.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123011220020321 its reverse (123020022110321), we get a palindrome (246031242130642).

The spelling of 123011220020321 in words is "one hundred twenty-three trillion, eleven billion, two hundred twenty million, twenty thousand, three hundred twenty-one".