113213143 has 2 divisors, whose sum is σ = 113213144. Its totient is φ = 113213142.

The previous prime is 113213123. The next prime is 113213159. The reversal of 113213143 is 341312311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113213143 - 2¹⁷ = 113082071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113213143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113213123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56606571 + 56606572.

It is an arithmetic number, because the mean of its divisors is an integer number (56606572).

Almost surely, 2^113213143 is an apocalyptic number.

113213143 is a deficient number, since it is larger than the sum of its proper divisors (1).

113213143 is an equidigital number, since it uses as much as digits as its factorization.

113213143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 113213143 is about 10640.1664930583. The cubic root of 113213143 is about 483.7625918865.

Adding to 113213143 its reverse (341312311), we get a palindrome (454525454).

The spelling of 113213143 in words is "one hundred thirteen million, two hundred thirteen thousand, one hundred forty-three".