323121023 has 4 divisors (see below), whose sum is σ = 342128160. Its totient is φ = 304113888.

The previous prime is 323120983. The next prime is 323121031. The reversal of 323121023 is 320121323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320121323 = 929 ⋅344587.

It is a cyclic number.

It is not a de Polignac number, because 323121023 - 2¹⁰ = 323119999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 19007119 = 323121023 / (3 + 2 + 3 + 1 + 2 + 1 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323120992 and 323121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323121083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9503543 + ... + 9503576.

It is an arithmetic number, because the mean of its divisors is an integer number (85532040).

Almost surely, 2^323121023 is an apocalyptic number.

323121023 is a deficient number, since it is larger than the sum of its proper divisors (19007137).

323121023 is a wasteful number, since it uses less digits than its factorization.

323121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19007136.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 323121023 is about 17975.5673902105. The cubic root of 323121023 is about 686.2068858109.

Adding to 323121023 its reverse (320121323), we get a palindrome (643242346).

The spelling of 323121023 in words is "three hundred twenty-three million, one hundred twenty-one thousand, twenty-three".