113213563 has 2 divisors, whose sum is σ = 113213564. Its totient is φ = 113213562.

The previous prime is 113213561. The next prime is 113213629. The reversal of 113213563 is 365312311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113213563 - 2¹ = 113213561 is a prime.

Together with 113213561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (113213561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56606781 + 56606782.

It is an arithmetic number, because the mean of its divisors is an integer number (56606782).

Almost surely, 2^113213563 is an apocalyptic number.

113213563 is a deficient number, since it is larger than the sum of its proper divisors (1).

113213563 is an equidigital number, since it uses as much as digits as its factorization.

113213563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 25.

The square root of 113213563 is about 10640.1862295732. The cubic root of 113213563 is about 483.7631901092.

Adding to 113213563 its reverse (365312311), we get a palindrome (478525874).

It can be divided in two parts, 11321 and 3563, that added together give a square (14884 = 122²).

The spelling of 113213563 in words is "one hundred thirteen million, two hundred thirteen thousand, five hundred sixty-three".