213412523 has 2 divisors, whose sum is σ = 213412524. Its totient is φ = 213412522.

The previous prime is 213412501. The next prime is 213412531. The reversal of 213412523 is 325214312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213412523 - 2¹² = 213408427 is a prime.

It is not a weakly prime, because it can be changed into another prime (213402523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106706261 + 106706262.

It is an arithmetic number, because the mean of its divisors is an integer number (106706262).

Almost surely, 2^213412523 is an apocalyptic number.

213412523 is a deficient number, since it is larger than the sum of its proper divisors (1).

213412523 is an equidigital number, since it uses as much as digits as its factorization.

213412523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 213412523 is about 14608.6454882032. The cubic root of 213412523 is about 597.5945572589.

Adding to 213412523 its reverse (325214312), we get a palindrome (538626835).

The spelling of 213412523 in words is "two hundred thirteen million, four hundred twelve thousand, five hundred twenty-three".