113203231117 has 2 divisors, whose sum is σ = 113203231118. Its totient is φ = 113203231116.

The previous prime is 113203231111. The next prime is 113203231159. The reversal of 113203231117 is 711132302311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100239359236 + 12963871881 = 316606^2 + 113859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113203231117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113203231091 and 113203231100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113203231111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56601615558 + 56601615559.

It is an arithmetic number, because the mean of its divisors is an integer number (56601615559).

Almost surely, 2^113203231117 is an apocalyptic number.

It is an amenable number.

113203231117 is a deficient number, since it is larger than the sum of its proper divisors (1).

113203231117 is an equidigital number, since it uses as much as digits as its factorization.

113203231117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 113203231117 its reverse (711132302311), we get a palindrome (824335533428).

The spelling of 113203231117 in words is "one hundred thirteen billion, two hundred three million, two hundred thirty-one thousand, one hundred seventeen".