12990323 has 2 divisors, whose sum is σ = 12990324. Its totient is φ = 12990322.

The previous prime is 12990311. The next prime is 12990361. The reversal of 12990323 is 32309921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12990323 - 2¹⁰ = 12989299 is a prime.

It is not a weakly prime, because it can be changed into another prime (12990223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6495161 + 6495162.

It is an arithmetic number, because the mean of its divisors is an integer number (6495162).

Almost surely, 2^12990323 is an apocalyptic number.

12990323 is a deficient number, since it is larger than the sum of its proper divisors (1).

12990323 is an equidigital number, since it uses as much as digits as its factorization.

12990323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 12990323 is about 3604.2090671880. The cubic root of 12990323 is about 235.0751110439.

The spelling of 12990323 in words is "twelve million, nine hundred ninety thousand, three hundred twenty-three".