321313423 has 2 divisors, whose sum is σ = 321313424. Its totient is φ = 321313422.

The previous prime is 321313409. The next prime is 321313451. The reversal of 321313423 is 324313123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321313423 - 2⁹ = 321312911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321313394 and 321313403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321313463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160656711 + 160656712.

It is an arithmetic number, because the mean of its divisors is an integer number (160656712).

Almost surely, 2^321313423 is an apocalyptic number.

321313423 is a deficient number, since it is larger than the sum of its proper divisors (1).

321313423 is an equidigital number, since it uses as much as digits as its factorization.

321313423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 22.

The square root of 321313423 is about 17925.2175161140. The cubic root of 321313423 is about 684.9249019915.

Adding to 321313423 its reverse (324313123), we get a palindrome (645626546).

The spelling of 321313423 in words is "three hundred twenty-one million, three hundred thirteen thousand, four hundred twenty-three".