113313023211281 has 2 divisors, whose sum is σ = 113313023211282. Its totient is φ = 113313023211280.

The previous prime is 113313023211161. The next prime is 113313023211301. The reversal of 113313023211281 is 182112320313311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91026692905681 + 22286330305600 = 9540791^2 + 4720840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113313023211281 is a prime.

It is a super-2 number, since 2×113313023211281² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (113313023211581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56656511605640 + 56656511605641.

It is an arithmetic number, because the mean of its divisors is an integer number (56656511605641).

Almost surely, 2^{113313023211281} is an apocalyptic number.

It is an amenable number.

113313023211281 is a deficient number, since it is larger than the sum of its proper divisors (1).

113313023211281 is an equidigital number, since it uses as much as digits as its factorization.

113313023211281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

Adding to 113313023211281 its reverse (182112320313311), we get a palindrome (295425343524592).

The spelling of 113313023211281 in words is "one hundred thirteen trillion, three hundred thirteen billion, twenty-three million, two hundred eleven thousand, two hundred eighty-one".