113320363561 has 2 divisors, whose sum is σ = 113320363562. Its totient is φ = 113320363560.

The previous prime is 113320363549. The next prime is 113320363571. The reversal of 113320363561 is 165363023311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61236451600 + 52083911961 = 247460^2 + 228219^2 .

It is a cyclic number.

It is not a de Polignac number, because 113320363561 - 2³¹ = 111172879913 is a prime.

It is not a weakly prime, because it can be changed into another prime (113320363511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56660181780 + 56660181781.

It is an arithmetic number, because the mean of its divisors is an integer number (56660181781).

Almost surely, 2^113320363561 is an apocalyptic number.

It is an amenable number.

113320363561 is a deficient number, since it is larger than the sum of its proper divisors (1).

113320363561 is an equidigital number, since it uses as much as digits as its factorization.

113320363561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 34.

Adding to 113320363561 its reverse (165363023311), we get a palindrome (278683386872).

The spelling of 113320363561 in words is "one hundred thirteen billion, three hundred twenty million, three hundred sixty-three thousand, five hundred sixty-one".