213493223663 has 2 divisors, whose sum is σ = 213493223664. Its totient is φ = 213493223662.

The previous prime is 213493223617. The next prime is 213493223687. The reversal of 213493223663 is 366322394312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213493223663 - 2⁶ = 213493223599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213493223063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106746611831 + 106746611832.

It is an arithmetic number, because the mean of its divisors is an integer number (106746611832).

Almost surely, 2^213493223663 is an apocalyptic number.

213493223663 is a deficient number, since it is larger than the sum of its proper divisors (1).

213493223663 is an equidigital number, since it uses as much as digits as its factorization.

213493223663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 44.

The spelling of 213493223663 in words is "two hundred thirteen billion, four hundred ninety-three million, two hundred twenty-three thousand, six hundred sixty-three".