113213009993 has 2 divisors, whose sum is σ = 113213009994. Its totient is φ = 113213009992.

The previous prime is 113213009989. The next prime is 113213010019. The reversal of 113213009993 is 399900312311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81780556729 + 31432453264 = 285973^2 + 177292^2 .

It is a cyclic number.

It is not a de Polignac number, because 113213009993 - 2² = 113213009989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113213009993.

It is not a weakly prime, because it can be changed into another prime (113213009093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56606504996 + 56606504997.

It is an arithmetic number, because the mean of its divisors is an integer number (56606504997).

Almost surely, 2^113213009993 is an apocalyptic number.

It is an amenable number.

113213009993 is a deficient number, since it is larger than the sum of its proper divisors (1).

113213009993 is an equidigital number, since it uses as much as digits as its factorization.

113213009993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39366, while the sum is 41.

The spelling of 113213009993 in words is "one hundred thirteen billion, two hundred thirteen million, nine thousand, nine hundred ninety-three".