123213030223391 has 2 divisors, whose sum is σ = 123213030223392. Its totient is φ = 123213030223390.

The previous prime is 123213030223357. The next prime is 123213030223421. The reversal of 123213030223391 is 193322030312321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123213030223391 - 2¹⁸ = 123213029961247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123213030229391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606515111695 + 61606515111696.

It is an arithmetic number, because the mean of its divisors is an integer number (61606515111696).

Almost surely, 2^{123213030223391} is an apocalyptic number.

123213030223391 is a deficient number, since it is larger than the sum of its proper divisors (1).

123213030223391 is an equidigital number, since it uses as much as digits as its factorization.

123213030223391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 123213030223391 in words is "one hundred twenty-three trillion, two hundred thirteen billion, thirty million, two hundred twenty-three thousand, three hundred ninety-one".