113580233581 has 2 divisors, whose sum is σ = 113580233582. Its totient is φ = 113580233580.

The previous prime is 113580233561. The next prime is 113580233597. The reversal of 113580233581 is 185332085311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111332999556 + 2247234025 = 333666^2 + 47405^2 .

It is an emirp because it is prime and its reverse (185332085311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113580233581 - 2⁵ = 113580233549 is a prime.

It is a super-2 number, since 2×113580233581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113580233561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56790116790 + 56790116791.

It is an arithmetic number, because the mean of its divisors is an integer number (56790116791).

Almost surely, 2^113580233581 is an apocalyptic number.

It is an amenable number.

113580233581 is a deficient number, since it is larger than the sum of its proper divisors (1).

113580233581 is an equidigital number, since it uses as much as digits as its factorization.

113580233581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 113580233581 in words is "one hundred thirteen billion, five hundred eighty million, two hundred thirty-three thousand, five hundred eighty-one".