113240544181 has 2 divisors, whose sum is σ = 113240544182. Its totient is φ = 113240544180.

The previous prime is 113240544169. The next prime is 113240544223. The reversal of 113240544181 is 181445042311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84540796081 + 28699748100 = 290759^2 + 169410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113240544181 is a prime.

It is a super-2 number, since 2×113240544181² (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 (113240544581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56620272090 + 56620272091.

It is an arithmetic number, because the mean of its divisors is an integer number (56620272091).

Almost surely, 2^113240544181 is an apocalyptic number.

It is an amenable number.

113240544181 is a deficient number, since it is larger than the sum of its proper divisors (1).

113240544181 is an equidigital number, since it uses as much as digits as its factorization.

113240544181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 34.

Adding to 113240544181 its reverse (181445042311), we get a palindrome (294685586492).

The spelling of 113240544181 in words is "one hundred thirteen billion, two hundred forty million, five hundred forty-four thousand, one hundred eighty-one".