10001320319 has 2 divisors, whose sum is σ = 10001320320. Its totient is φ = 10001320318.

The previous prime is 10001320297. The next prime is 10001320327. The reversal of 10001320319 is 91302310001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001320319 is a prime.

It is a super-2 number, since 2×10001320319² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10001320319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10001320019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000660159 + 5000660160.

It is an arithmetic number, because the mean of its divisors is an integer number (5000660160).

Almost surely, 2^10001320319 is an apocalyptic number.

10001320319 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001320319 is an equidigital number, since it uses as much as digits as its factorization.

10001320319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The spelling of 10001320319 in words is "ten billion, one million, three hundred twenty thousand, three hundred nineteen".