213342243293 has 2 divisors, whose sum is σ = 213342243294. Its totient is φ = 213342243292.

The previous prime is 213342243277. The next prime is 213342243313. The reversal of 213342243293 is 392342243312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146931922489 + 66410320804 = 383317^2 + 257702^2 .

It is a cyclic number.

It is not a de Polignac number, because 213342243293 - 2⁴ = 213342243277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213342243263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106671121646 + 106671121647.

It is an arithmetic number, because the mean of its divisors is an integer number (106671121647).

Almost surely, 2^213342243293 is an apocalyptic number.

It is an amenable number.

213342243293 is a deficient number, since it is larger than the sum of its proper divisors (1).

213342243293 is an equidigital number, since it uses as much as digits as its factorization.

213342243293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 38.

The spelling of 213342243293 in words is "two hundred thirteen billion, three hundred forty-two million, two hundred forty-three thousand, two hundred ninety-three".