321248623 has 2 divisors, whose sum is σ = 321248624. Its totient is φ = 321248622.

The previous prime is 321248621. The next prime is 321248633. The reversal of 321248623 is 326842123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321248623 - 2¹ = 321248621 is a prime.

It is a super-2 number, since 2×321248623² = 206401355558792258, which contains 22 as substring.

Together with 321248621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321248621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160624311 + 160624312.

It is an arithmetic number, because the mean of its divisors is an integer number (160624312).

Almost surely, 2^321248623 is an apocalyptic number.

321248623 is a deficient number, since it is larger than the sum of its proper divisors (1).

321248623 is an equidigital number, since it uses as much as digits as its factorization.

321248623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 31.

The square root of 321248623 is about 17923.4099155267. The cubic root of 321248623 is about 684.8788554479.

The spelling of 321248623 in words is "three hundred twenty-one million, two hundred forty-eight thousand, six hundred twenty-three".