10331509997 has 2 divisors, whose sum is σ = 10331509998. Its totient is φ = 10331509996.

The previous prime is 10331509987. The next prime is 10331510141. The reversal of 10331509997 is 79990513301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10263513481 + 67996516 = 101309^2 + 8246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10331509997 is a prime.

It is a super-2 number, since 2×10331509997² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10331509987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5165754998 + 5165754999.

It is an arithmetic number, because the mean of its divisors is an integer number (5165754999).

Almost surely, 2^10331509997 is an apocalyptic number.

It is an amenable number.

10331509997 is a deficient number, since it is larger than the sum of its proper divisors (1).

10331509997 is an equidigital number, since it uses as much as digits as its factorization.

10331509997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229635, while the sum is 47.

The spelling of 10331509997 in words is "ten billion, three hundred thirty-one million, five hundred nine thousand, nine hundred ninety-seven".