113210070581 has 2 divisors, whose sum is σ = 113210070582. Its totient is φ = 113210070580.

The previous prime is 113210070511. The next prime is 113210070647. The reversal of 113210070581 is 185070012311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79191588100 + 34018482481 = 281410^2 + 184441^2 .

It is an emirp because it is prime and its reverse (185070012311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113210070581 - 2²⁶ = 113142961717 is a prime.

It is a super-2 number, since 2×113210070581² (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 (113210070511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56605035290 + 56605035291.

It is an arithmetic number, because the mean of its divisors is an integer number (56605035291).

Almost surely, 2^113210070581 is an apocalyptic number.

It is an amenable number.

113210070581 is a deficient number, since it is larger than the sum of its proper divisors (1).

113210070581 is an equidigital number, since it uses as much as digits as its factorization.

113210070581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 29.

Adding to 113210070581 its reverse (185070012311), we get a palindrome (298280082892).

The spelling of 113210070581 in words is "one hundred thirteen billion, two hundred ten million, seventy thousand, five hundred eighty-one".