213332423 has 2 divisors, whose sum is σ = 213332424. Its totient is φ = 213332422.

The previous prime is 213332411. The next prime is 213332447. The reversal of 213332423 is 324233312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213332423 - 2¹⁰ = 213331399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213331423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106666211 + 106666212.

It is an arithmetic number, because the mean of its divisors is an integer number (106666212).

Almost surely, 2^213332423 is an apocalyptic number.

213332423 is a deficient number, since it is larger than the sum of its proper divisors (1).

213332423 is an equidigital number, since it uses as much as digits as its factorization.

213332423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 23.

The square root of 213332423 is about 14605.9037036398. The cubic root of 213332423 is about 597.5197829622.

Adding to 213332423 its reverse (324233312), we get a palindrome (537565735).

The spelling of 213332423 in words is "two hundred thirteen million, three hundred thirty-two thousand, four hundred twenty-three".