321057023 has 8 divisors (see below), whose sum is σ = 382875648. Its totient is φ = 263226744.

The previous prime is 321056971. The next prime is 321057043. The reversal of 321057023 is 320750123.

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 321057023 - 2¹⁶ = 320991487 is a prime.

It is a super-2 number, since 2×321057023² = 206155224035245058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321057023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321057043) 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 7 ways as a sum of consecutive naturals, for example, 996911 + ... + 997232.

It is an arithmetic number, because the mean of its divisors is an integer number (47859456).

Almost surely, 2^321057023 is an apocalyptic number.

321057023 is a deficient number, since it is larger than the sum of its proper divisors (61818625).

321057023 is a wasteful number, since it uses less digits than its factorization.

321057023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994173.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 321057023 is about 17918.0641532505. The cubic root of 321057023 is about 684.7426692502.

The spelling of 321057023 in words is "three hundred twenty-one million, fifty-seven thousand, twenty-three".