1423312213 has 2 divisors, whose sum is σ = 1423312214. Its totient is φ = 1423312212.

The previous prime is 1423312193. The next prime is 1423312217. The reversal of 1423312213 is 3122133241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1272562929 + 150749284 = 35673^2 + 12278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423312213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423312217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711656106 + 711656107.

It is an arithmetic number, because the mean of its divisors is an integer number (711656107).

Almost surely, 2^1423312213 is an apocalyptic number.

It is an amenable number.

1423312213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423312213 is an equidigital number, since it uses as much as digits as its factorization.

1423312213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 1423312213 is about 37726.8102680309. The cubic root of 1423312213 is about 1124.8641055277.

Adding to 1423312213 its reverse (3122133241), we get a palindrome (4545445454).

The spelling of 1423312213 in words is "one billion, four hundred twenty-three million, three hundred twelve thousand, two hundred thirteen".