113120221231 has 2 divisors, whose sum is σ = 113120221232. Its totient is φ = 113120221230.

The previous prime is 113120221211. The next prime is 113120221243. The reversal of 113120221231 is 132122021311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113120221231 - 2¹¹ = 113120219183 is a prime.

It is a super-2 number, since 2×113120221231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113120221199 and 113120221208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113120221211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56560110615 + 56560110616.

It is an arithmetic number, because the mean of its divisors is an integer number (56560110616).

Almost surely, 2^113120221231 is an apocalyptic number.

113120221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

113120221231 is an equidigital number, since it uses as much as digits as its factorization.

113120221231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 113120221231 its reverse (132122021311), we get a palindrome (245242242542).

The spelling of 113120221231 in words is "one hundred thirteen billion, one hundred twenty million, two hundred twenty-one thousand, two hundred thirty-one".