113143213 has 2 divisors, whose sum is σ = 113143214. Its totient is φ = 113143212.

The previous prime is 113143201. The next prime is 113143223. The reversal of 113143213 is 312341311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111471364 + 1671849 = 10558^2 + 1293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113143213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113143223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56571606 + 56571607.

It is an arithmetic number, because the mean of its divisors is an integer number (56571607).

Almost surely, 2^113143213 is an apocalyptic number.

It is an amenable number.

113143213 is a deficient number, since it is larger than the sum of its proper divisors (1).

113143213 is an equidigital number, since it uses as much as digits as its factorization.

113143213 is an evil number, because the sum of its binary digits is even.

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

The square root of 113143213 is about 10636.8798526636. The cubic root of 113143213 is about 483.6629671584.

Adding to 113143213 its reverse (312341311), we get a palindrome (425484524).

It can be divided in two parts, 1131 and 43213, that added together give a palindrome (44344).

The spelling of 113143213 in words is "one hundred thirteen million, one hundred forty-three thousand, two hundred thirteen".