323420993856043 has 2 divisors, whose sum is σ = 323420993856044. Its totient is φ = 323420993856042.

The previous prime is 323420993855957. The next prime is 323420993856091. The reversal of 323420993856043 is 340658399024323.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323420993856043 is a prime.

It is a super-2 number, since 2×323420993856043² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (323420993856743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161710496928021 + 161710496928022.

It is an arithmetic number, because the mean of its divisors is an integer number (161710496928022).

Almost surely, 2^{323420993856043} is an apocalyptic number.

323420993856043 is a deficient number, since it is larger than the sum of its proper divisors (1).

323420993856043 is an equidigital number, since it uses as much as digits as its factorization.

323420993856043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100776960, while the sum is 61.

The spelling of 323420993856043 in words is "three hundred twenty-three trillion, four hundred twenty billion, nine hundred ninety-three million, eight hundred fifty-six thousand, forty-three".