323007431 has 2 divisors, whose sum is σ = 323007432. Its totient is φ = 323007430.

The previous prime is 323007409. The next prime is 323007473. The reversal of 323007431 is 134700323.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (134700323) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323007431 is a prime.

It is a super-2 number, since 2×323007431² = 208667600962439522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 323007397 and 323007406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323007401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161503715 + 161503716.

It is an arithmetic number, because the mean of its divisors is an integer number (161503716).

Almost surely, 2^323007431 is an apocalyptic number.

323007431 is a deficient number, since it is larger than the sum of its proper divisors (1).

323007431 is an equidigital number, since it uses as much as digits as its factorization.

323007431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 323007431 is about 17972.4074903726. The cubic root of 323007431 is about 686.1264652224.

Adding to 323007431 its reverse (134700323), we get a palindrome (457707754).

The spelling of 323007431 in words is "three hundred twenty-three million, seven thousand, four hundred thirty-one".