123213116489941 has 2 divisors, whose sum is σ = 123213116489942. Its totient is φ = 123213116489940.

The previous prime is 123213116489899. The next prime is 123213116490029. The reversal of 123213116489941 is 149984611312321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122951505722500 + 261610767441 = 11088350^2 + 511479^2 .

It is a cyclic number.

It is not a de Polignac number, because 123213116489941 - 2⁹ = 123213116489429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123213116480941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606558244970 + 61606558244971.

It is an arithmetic number, because the mean of its divisors is an integer number (61606558244971).

Almost surely, 2^{123213116489941} is an apocalyptic number.

It is an amenable number.

123213116489941 is a deficient number, since it is larger than the sum of its proper divisors (1).

123213116489941 is an equidigital number, since it uses as much as digits as its factorization.

123213116489941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 55.

The spelling of 123213116489941 in words is "one hundred twenty-three trillion, two hundred thirteen billion, one hundred sixteen million, four hundred eighty-nine thousand, nine hundred forty-one".