113220143 has 2 divisors, whose sum is σ = 113220144. Its totient is φ = 113220142.

The previous prime is 113220139. The next prime is 113220167. The reversal of 113220143 is 341022311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113220143 - 2² = 113220139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113220103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610071 + 56610072.

It is an arithmetic number, because the mean of its divisors is an integer number (56610072).

Almost surely, 2^113220143 is an apocalyptic number.

113220143 is a deficient number, since it is larger than the sum of its proper divisors (1).

113220143 is an equidigital number, since it uses as much as digits as its factorization.

113220143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 113220143 is about 10640.4954301950. The cubic root of 113220143 is about 483.7725620727.

Adding to 113220143 its reverse (341022311), we get a palindrome (454242454).

The spelling of 113220143 in words is "one hundred thirteen million, two hundred twenty thousand, one hundred forty-three".