321123203023 has 4 divisors (see below), whose sum is σ = 366997946320. Its totient is φ = 275248459728.

The previous prime is 321123203017. The next prime is 321123203029. The reversal of 321123203023 is 320302321123.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (321123203017) and next prime (321123203029).

It is a cyclic number.

It is not a de Polignac number, because 321123203023 - 2⁵ = 321123202991 is a prime.

It is a super-2 number, since 2×321123203023² (a number of 24 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 = 321123202985 and 321123203003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321123203029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22937371638 + ... + 22937371651.

It is an arithmetic number, because the mean of its divisors is an integer number (91749486580).

Almost surely, 2^321123203023 is an apocalyptic number.

321123203023 is a deficient number, since it is larger than the sum of its proper divisors (45874743297).

321123203023 is an equidigital number, since it uses as much as digits as its factorization.

321123203023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45874743296.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 321123203023 its reverse (320302321123), we get a palindrome (641425524146).

The spelling of 321123203023 in words is "three hundred twenty-one billion, one hundred twenty-three million, two hundred three thousand, twenty-three".