213443204142323 has 2 divisors, whose sum is σ = 213443204142324. Its totient is φ = 213443204142322.

The previous prime is 213443204142307. The next prime is 213443204142347. The reversal of 213443204142323 is 323241402344312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213443204142323 - 2⁴ = 213443204142307 is a prime.

It is not a weakly prime, because it can be changed into another prime (213443204148323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106721602071161 + 106721602071162.

It is an arithmetic number, because the mean of its divisors is an integer number (106721602071162).

Almost surely, 2^{213443204142323} is an apocalyptic number.

213443204142323 is a deficient number, since it is larger than the sum of its proper divisors (1).

213443204142323 is an equidigital number, since it uses as much as digits as its factorization.

213443204142323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 38.

Adding to 213443204142323 its reverse (323241402344312), we get a palindrome (536684606486635).

The spelling of 213443204142323 in words is "two hundred thirteen trillion, four hundred forty-three billion, two hundred four million, one hundred forty-two thousand, three hundred twenty-three".