321252623 has 4 divisors (see below), whose sum is σ = 321362328. Its totient is φ = 321142920.

The previous prime is 321252601. The next prime is 321252629. The reversal of 321252623 is 326252123.

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

It is a cyclic number.

It is not a de Polignac number, because 321252623 - 2²⁰ = 320204047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321252592 and 321252601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321252629) 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, 50336 + ... + 56357.

It is an arithmetic number, because the mean of its divisors is an integer number (80340582).

Almost surely, 2^321252623 is an apocalyptic number.

321252623 is a deficient number, since it is larger than the sum of its proper divisors (109705).

321252623 is a wasteful number, since it uses less digits than its factorization.

321252623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109704.

The product of its digits is 4320, while the sum is 26.

The square root of 321252623 is about 17923.5215010890. The cubic root of 321252623 is about 684.8816980064.

It can be divided in two parts, 32125262 and 3, that multiplied together give a triangular number (96375786 = T₁₃₈₈₃).

The spelling of 321252623 in words is "three hundred twenty-one million, two hundred fifty-two thousand, six hundred twenty-three".