323013491 has 2 divisors, whose sum is σ = 323013492. Its totient is φ = 323013490.

The previous prime is 323013487. The next prime is 323013503. The reversal of 323013491 is 194310323.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 323013491 - 2² = 323013487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323013491.

It is not a weakly prime, because it can be changed into another prime (323013421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161506745 + 161506746.

It is an arithmetic number, because the mean of its divisors is an integer number (161506746).

Almost surely, 2^323013491 is an apocalyptic number.

323013491 is a deficient number, since it is larger than the sum of its proper divisors (1).

323013491 is an equidigital number, since it uses as much as digits as its factorization.

323013491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 323013491 is about 17972.5760813524. The cubic root of 323013491 is about 686.1307560426.

The spelling of 323013491 in words is "three hundred twenty-three million, thirteen thousand, four hundred ninety-one".