10201313021 has 2 divisors, whose sum is σ = 10201313022. Its totient is φ = 10201313020.

The previous prime is 10201312997. The next prime is 10201313039. The reversal of 10201313021 is 12031310201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6681264121 + 3520048900 = 81739^2 + 59330^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201313021 - 2²² = 10197118717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10201312987 and 10201313005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10201313041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100656510 + 5100656511.

It is an arithmetic number, because the mean of its divisors is an integer number (5100656511).

Almost surely, 2^10201313021 is an apocalyptic number.

It is an amenable number.

10201313021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201313021 is an equidigital number, since it uses as much as digits as its factorization.

10201313021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10201313021 its reverse (12031310201), we get a palindrome (22232623222).

The spelling of 10201313021 in words is "ten billion, two hundred one million, three hundred thirteen thousand, twenty-one".