123196223929 has 2 divisors, whose sum is σ = 123196223930. Its totient is φ = 123196223928.

The previous prime is 123196223881. The next prime is 123196223939. The reversal of 123196223929 is 929322691321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123079583929 + 116640000 = 350827^2 + 10800^2 .

It is an emirp because it is prime and its reverse (929322691321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123196223929 - 2²¹ = 123194126777 is a prime.

It is not a weakly prime, because it can be changed into another prime (123196223939) 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, 61598111964 + 61598111965.

It is an arithmetic number, because the mean of its divisors is an integer number (61598111965).

Almost surely, 2^123196223929 is an apocalyptic number.

It is an amenable number.

123196223929 is a deficient number, since it is larger than the sum of its proper divisors (1).

123196223929 is an equidigital number, since it uses as much as digits as its factorization.

123196223929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 49.

The spelling of 123196223929 in words is "one hundred twenty-three billion, one hundred ninety-six million, two hundred twenty-three thousand, nine hundred twenty-nine".