321203322220123 has 16 divisors (see below), whose sum is σ = 374597934796800. Its totient is φ = 275304784588008.

The previous prime is 321203322220097. The next prime is 321203322220133. The reversal of 321203322220123 is 321022223302123.

It is not a de Polignac number, because 321203322220123 - 2³⁷ = 321065883266651 is a prime.

It is a super-2 number, since 2×321203322220123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321203322220091 and 321203322220100.

It is not an unprimeable number, because it can be changed into a prime (321203322220133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13338811 + ... + 28641412.

It is an arithmetic number, because the mean of its divisors is an integer number (23412370924800).

Almost surely, 2^{321203322220123} is an apocalyptic number.

321203322220123 is a deficient number, since it is larger than the sum of its proper divisors (53394612576677).

321203322220123 is an equidigital number, since it uses as much as digits as its factorization.

321203322220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42002551 (or 42002537 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 321203322220123 its reverse (321022223302123), we get a palindrome (642225545522246).

The spelling of 321203322220123 in words is "three hundred twenty-one trillion, two hundred three billion, three hundred twenty-two million, two hundred twenty thousand, one hundred twenty-three".