20312323001 has 2 divisors, whose sum is σ = 20312323002. Its totient is φ = 20312323000.

The previous prime is 20312322997. The next prime is 20312323049. The reversal of 20312323001 is 10032321302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19578725776 + 733597225 = 139924^2 + 27085^2 .

It is a cyclic number.

It is not a de Polignac number, because 20312323001 - 2² = 20312322997 is a prime.

It is not a weakly prime, because it can be changed into another prime (20312323051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156161500 + 10156161501.

It is an arithmetic number, because the mean of its divisors is an integer number (10156161501).

Almost surely, 2^20312323001 is an apocalyptic number.

It is an amenable number.

20312323001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312323001 is an equidigital number, since it uses as much as digits as its factorization.

20312323001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20312323001 its reverse (10032321302), we get a palindrome (30344644303).

The spelling of 20312323001 in words is "twenty billion, three hundred twelve million, three hundred twenty-three thousand, one".