323002111981 has 2 divisors, whose sum is σ = 323002111982. Its totient is φ = 323002111980.

The previous prime is 323002111937. The next prime is 323002112077. The reversal of 323002111981 is 189111200323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287761436356 + 35240675625 = 536434^2 + 187725^2 .

It is a cyclic number.

It is not a de Polignac number, because 323002111981 - 2⁹ = 323002111469 is a prime.

It is a super-2 number, since 2×323002111981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323002115981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161501055990 + 161501055991.

It is an arithmetic number, because the mean of its divisors is an integer number (161501055991).

Almost surely, 2^323002111981 is an apocalyptic number.

It is an amenable number.

323002111981 is a deficient number, since it is larger than the sum of its proper divisors (1).

323002111981 is an equidigital number, since it uses as much as digits as its factorization.

323002111981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 323002111981 in words is "three hundred twenty-three billion, two million, one hundred eleven thousand, nine hundred eighty-one".