1002323199991 has 2 divisors, whose sum is σ = 1002323199992. Its totient is φ = 1002323199990.

The previous prime is 1002323199971. The next prime is 1002323200007. The reversal of 1002323199991 is 1999913232001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002323199991 - 2²⁹ = 1001786329079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002323199901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501161599995 + 501161599996.

It is an arithmetic number, because the mean of its divisors is an integer number (501161599996).

Almost surely, 2^{1002323199991} is an apocalyptic number.

1002323199991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002323199991 is an equidigital number, since it uses as much as digits as its factorization.

1002323199991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 49.

The spelling of 1002323199991 in words is "one trillion, two billion, three hundred twenty-three million, one hundred ninety-nine thousand, nine hundred ninety-one".