321263423 has 12 divisors (see below), whose sum is σ = 348439320. Its totient is φ = 296071776.

The previous prime is 321263353. The next prime is 321263441. The reversal of 321263423 is 324362123.

It is not a de Polignac number, because 321263423 - 2¹⁴ = 321247039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321263392 and 321263401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321263023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144065 + ... + 146277.

It is an arithmetic number, because the mean of its divisors is an integer number (29036610).

Almost surely, 2^321263423 is an apocalyptic number.

321263423 is a deficient number, since it is larger than the sum of its proper divisors (27175897).

321263423 is a wasteful number, since it uses less digits than its factorization.

321263423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 3085 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

The square root of 321263423 is about 17923.8227786374. The cubic root of 321263423 is about 684.8893727966.

The spelling of 321263423 in words is "three hundred twenty-one million, two hundred sixty-three thousand, four hundred twenty-three".