113311022173 has 2 divisors, whose sum is σ = 113311022174. Its totient is φ = 113311022172.

The previous prime is 113311022129. The next prime is 113311022177. The reversal of 113311022173 is 371220113311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68797617849 + 44513404324 = 262293^2 + 210982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113311022173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113311022177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56655511086 + 56655511087.

It is an arithmetic number, because the mean of its divisors is an integer number (56655511087).

Almost surely, 2^113311022173 is an apocalyptic number.

It is an amenable number.

113311022173 is a deficient number, since it is larger than the sum of its proper divisors (1).

113311022173 is an equidigital number, since it uses as much as digits as its factorization.

113311022173 is an evil number, because the sum of its binary digits is even.

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

Adding to 113311022173 its reverse (371220113311), we get a palindrome (484531135484).

The spelling of 113311022173 in words is "one hundred thirteen billion, three hundred eleven million, twenty-two thousand, one hundred seventy-three".