1323300991 has 2 divisors, whose sum is σ = 1323300992. Its totient is φ = 1323300990.

The previous prime is 1323300973. The next prime is 1323301009. The reversal of 1323300991 is 1990033231.

It is a balanced prime because it is at equal distance from previous prime (1323300973) and next prime (1323301009).

It is a cyclic number.

It is not a de Polignac number, because 1323300991 - 2⁷ = 1323300863 is a prime.

It is a super-2 number, since 2×1323300991² = 3502251025563164162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323300931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661650495 + 661650496.

It is an arithmetic number, because the mean of its divisors is an integer number (661650496).

Almost surely, 2^1323300991 is an apocalyptic number.

1323300991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323300991 is an equidigital number, since it uses as much as digits as its factorization.

1323300991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 1323300991 is about 36377.2042768545. The cubic root of 1323300991 is about 1097.8749582502.

The spelling of 1323300991 in words is "one billion, three hundred twenty-three million, three hundred thousand, nine hundred ninety-one".