323012981 has 2 divisors, whose sum is σ = 323012982. Its totient is φ = 323012980.

The previous prime is 323012969. The next prime is 323012993. The reversal of 323012981 is 189210323.

It is a balanced prime because it is at equal distance from previous prime (323012969) and next prime (323012993).

It can be written as a sum of positive squares in only one way, i.e., 282576100 + 40436881 = 16810^2 + 6359^2 .

It is a cyclic number.

It is not a de Polignac number, because 323012981 - 2⁶ = 323012917 is a prime.

It is a super-2 number, since 2×323012981² = 208674771789012722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323612981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161506490 + 161506491.

It is an arithmetic number, because the mean of its divisors is an integer number (161506491).

Almost surely, 2^323012981 is an apocalyptic number.

It is an amenable number.

323012981 is a deficient number, since it is larger than the sum of its proper divisors (1).

323012981 is an equidigital number, since it uses as much as digits as its factorization.

323012981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 323012981 is about 17972.5618930635. The cubic root of 323012981 is about 686.1303949360.

The spelling of 323012981 in words is "three hundred twenty-three million, twelve thousand, nine hundred eighty-one".