20323049 has 2 divisors, whose sum is σ = 20323050. Its totient is φ = 20323048.

The previous prime is 20323031. The next prime is 20323057. The reversal of 20323049 is 94032302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20313049 + 10000 = 4507^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 20323049 - 2⁸ = 20322793 is a prime.

It is not a weakly prime, because it can be changed into another prime (20323019) 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, 10161524 + 10161525.

It is an arithmetic number, because the mean of its divisors is an integer number (10161525).

Almost surely, 2^20323049 is an apocalyptic number.

It is an amenable number.

20323049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323049 is an equidigital number, since it uses as much as digits as its factorization.

20323049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 20323049 is about 4508.1092488980. The cubic root of 20323049 is about 272.8954458362.

The spelling of 20323049 in words is "twenty million, three hundred twenty-three thousand, forty-nine".