113391282881 has 2 divisors, whose sum is σ = 113391282882. Its totient is φ = 113391282880.

The previous prime is 113391282863. The next prime is 113391282887. The reversal of 113391282881 is 188282193311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66110694400 + 47280588481 = 257120^2 + 217441^2 .

It is a cyclic number.

It is not a de Polignac number, because 113391282881 - 2⁶ = 113391282817 is a prime.

It is a super-2 number, since 2×113391282881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113391282887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56695641440 + 56695641441.

It is an arithmetic number, because the mean of its divisors is an integer number (56695641441).

Almost surely, 2^113391282881 is an apocalyptic number.

It is an amenable number.

113391282881 is a deficient number, since it is larger than the sum of its proper divisors (1).

113391282881 is an equidigital number, since it uses as much as digits as its factorization.

113391282881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 47.

The spelling of 113391282881 in words is "one hundred thirteen billion, three hundred ninety-one million, two hundred eighty-two thousand, eight hundred eighty-one".