20313001001 has 2 divisors, whose sum is σ = 20313001002. Its totient is φ = 20313001000.

The previous prime is 20313000991. The next prime is 20313001003. The reversal of 20313001001 is 10010031302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15746485225 + 4566515776 = 125485^2 + 67576^2 .

It is a cyclic number.

It is not a de Polignac number, because 20313001001 - 2¹⁴ = 20312984617 is a prime.

Together with 20313001003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20313001003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156500500 + 10156500501.

It is an arithmetic number, because the mean of its divisors is an integer number (10156500501).

Almost surely, 2^20313001001 is an apocalyptic number.

It is an amenable number.

20313001001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313001001 is an equidigital number, since it uses as much as digits as its factorization.

20313001001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 20313001001 its reverse (10010031302), we get a palindrome (30323032303).

The spelling of 20313001001 in words is "twenty billion, three hundred thirteen million, one thousand, one".