42313223 has 2 divisors, whose sum is σ = 42313224. Its totient is φ = 42313222.

The previous prime is 42313147. The next prime is 42313253. The reversal of 42313223 is 32231324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42313223 - 2¹⁶ = 42247687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42313195 and 42313204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42313253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21156611 + 21156612.

It is an arithmetic number, because the mean of its divisors is an integer number (21156612).

Almost surely, 2^42313223 is an apocalyptic number.

42313223 is a deficient number, since it is larger than the sum of its proper divisors (1).

42313223 is an equidigital number, since it uses as much as digits as its factorization.

42313223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 20.

The square root of 42313223 is about 6504.8614896860. The cubic root of 42313223 is about 348.4646296303.

Adding to 42313223 its reverse (32231324), we get a palindrome (74544547).

The spelling of 42313223 in words is "forty-two million, three hundred thirteen thousand, two hundred twenty-three".