213312213293 has 2 divisors, whose sum is σ = 213312213294. Its totient is φ = 213312213292.

The previous prime is 213312213281. The next prime is 213312213299. The reversal of 213312213293 is 392312213312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169445843044 + 43866370249 = 411638^2 + 209443^2 .

It is a cyclic number.

It is not a de Polignac number, because 213312213293 - 2⁴ = 213312213277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213312213299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106656106646 + 106656106647.

It is an arithmetic number, because the mean of its divisors is an integer number (106656106647).

Almost surely, 2^213312213293 is an apocalyptic number.

It is an amenable number.

213312213293 is a deficient number, since it is larger than the sum of its proper divisors (1).

213312213293 is an equidigital number, since it uses as much as digits as its factorization.

213312213293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The spelling of 213312213293 in words is "two hundred thirteen billion, three hundred twelve million, two hundred thirteen thousand, two hundred ninety-three".