99323117653 has 2 divisors, whose sum is σ = 99323117654. Its totient is φ = 99323117652.

The previous prime is 99323117629. The next prime is 99323117723. The reversal of 99323117653 is 35671132399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99024761124 + 298356529 = 314682^2 + 17273^2 .

It is a cyclic number.

It is not a de Polignac number, because 99323117653 - 2³³ = 90733183061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99323117597 and 99323117606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99323117753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49661558826 + 49661558827.

It is an arithmetic number, because the mean of its divisors is an integer number (49661558827).

Almost surely, 2^99323117653 is an apocalyptic number.

It is an amenable number.

99323117653 is a deficient number, since it is larger than the sum of its proper divisors (1).

99323117653 is an equidigital number, since it uses as much as digits as its factorization.

99323117653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 49.

The spelling of 99323117653 in words is "ninety-nine billion, three hundred twenty-three million, one hundred seventeen thousand, six hundred fifty-three".