123213321193 has 2 divisors, whose sum is σ = 123213321194. Its totient is φ = 123213321192.

The previous prime is 123213321113. The next prime is 123213321223. The reversal of 123213321193 is 391123312321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121949020944 + 1264300249 = 349212^2 + 35557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123213321193 is a prime.

It is not a weakly prime, because it can be changed into another prime (123213321113) 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, 61606660596 + 61606660597.

It is an arithmetic number, because the mean of its divisors is an integer number (61606660597).

Almost surely, 2^123213321193 is an apocalyptic number.

It is an amenable number.

123213321193 is a deficient number, since it is larger than the sum of its proper divisors (1).

123213321193 is an equidigital number, since it uses as much as digits as its factorization.

123213321193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The spelling of 123213321193 in words is "one hundred twenty-three billion, two hundred thirteen million, three hundred twenty-one thousand, one hundred ninety-three".