20313100999 has 2 divisors, whose sum is σ = 20313101000. Its totient is φ = 20313100998.

The previous prime is 20313100957. The next prime is 20313101027. The reversal of 20313100999 is 99900131302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20313100999 - 2⁹ = 20313100487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20313100499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156550499 + 10156550500.

It is an arithmetic number, because the mean of its divisors is an integer number (10156550500).

Almost surely, 2^20313100999 is an apocalyptic number.

20313100999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313100999 is an equidigital number, since it uses as much as digits as its factorization.

20313100999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 37.

The spelling of 20313100999 in words is "twenty billion, three hundred thirteen million, one hundred thousand, nine hundred ninety-nine".