113212220243 has 2 divisors, whose sum is σ = 113212220244. Its totient is φ = 113212220242.

The previous prime is 113212220197. The next prime is 113212220249. The reversal of 113212220243 is 342022212311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113212220243 - 2⁸ = 113212219987 is a prime.

It is not a weakly prime, because it can be changed into another prime (113212220249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56606110121 + 56606110122.

It is an arithmetic number, because the mean of its divisors is an integer number (56606110122).

Almost surely, 2^113212220243 is an apocalyptic number.

113212220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

113212220243 is an equidigital number, since it uses as much as digits as its factorization.

113212220243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 113212220243 its reverse (342022212311), we get a palindrome (455234432554).

The spelling of 113212220243 in words is "one hundred thirteen billion, two hundred twelve million, two hundred twenty thousand, two hundred forty-three".