213293272393 has 2 divisors, whose sum is σ = 213293272394. Its totient is φ = 213293272392.

The previous prime is 213293272327. The next prime is 213293272399. The reversal of 213293272393 is 393272392312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167586253129 + 45707019264 = 409373^2 + 213792^2 .

It is a cyclic number.

It is not a de Polignac number, because 213293272393 - 2²⁵ = 213259717961 is a prime.

It is a super-2 number, since 2×213293272393² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213293272399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106646636196 + 106646636197.

It is an arithmetic number, because the mean of its divisors is an integer number (106646636197).

Almost surely, 2^213293272393 is an apocalyptic number.

It is an amenable number.

213293272393 is a deficient number, since it is larger than the sum of its proper divisors (1).

213293272393 is an equidigital number, since it uses as much as digits as its factorization.

213293272393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 46.

The spelling of 213293272393 in words is "two hundred thirteen billion, two hundred ninety-three million, two hundred seventy-two thousand, three hundred ninety-three".