20312323241009 has 2 divisors, whose sum is σ = 20312323241010. Its totient is φ = 20312323241008.

The previous prime is 20312323240991. The next prime is 20312323241057. The reversal of 20312323241009 is 90014232321302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13510513192225 + 6801810048784 = 3675665^2 + 2608028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20312323241009 is a prime.

It is not a weakly prime, because it can be changed into another prime (20312323241059) 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, 10156161620504 + 10156161620505.

It is an arithmetic number, because the mean of its divisors is an integer number (10156161620505).

Almost surely, 2^{20312323241009} is an apocalyptic number.

It is an amenable number.

20312323241009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312323241009 is an equidigital number, since it uses as much as digits as its factorization.

20312323241009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 20312323241009 in words is "twenty trillion, three hundred twelve billion, three hundred twenty-three million, two hundred forty-one thousand, nine".