321221332023 has 16 divisors (see below), whose sum is σ = 434359086336. Its totient is φ = 211116006080.

The previous prime is 321221332021. The next prime is 321221332039. The reversal of 321221332023 is 320233122123.

It is a cyclic number.

It is not a de Polignac number, because 321221332023 - 2¹ = 321221332021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321221331984 and 321221332002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321221332021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3376636 + ... + 3470462.

It is an arithmetic number, because the mean of its divisors is an integer number (27147442896).

Almost surely, 2^321221332023 is an apocalyptic number.

321221332023 is a deficient number, since it is larger than the sum of its proper divisors (113137754313).

321221332023 is a wasteful number, since it uses less digits than its factorization.

321221332023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109974.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 321221332023 its reverse (320233122123), we get a palindrome (641454454146).

The spelling of 321221332023 in words is "three hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, twenty-three".