123333929489 has 2 divisors, whose sum is σ = 123333929490. Its totient is φ = 123333929488.

The previous prime is 123333929471. The next prime is 123333929491. The reversal of 123333929489 is 984929333321.

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., 91575838225 + 31758091264 = 302615^2 + 178208^2 .

It is a cyclic number.

It is not a de Polignac number, because 123333929489 - 2⁸ = 123333929233 is a prime.

It is a super-2 number, since 2×123333929489² (a number of 23 digits) contains 22 as substring.

Together with 123333929491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123333925489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61666964744 + 61666964745.

It is an arithmetic number, because the mean of its divisors is an integer number (61666964745).

Almost surely, 2^123333929489 is an apocalyptic number.

It is an amenable number.

123333929489 is a deficient number, since it is larger than the sum of its proper divisors (1).

123333929489 is an equidigital number, since it uses as much as digits as its factorization.

123333929489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7558272, while the sum is 56.

The spelling of 123333929489 in words is "one hundred twenty-three billion, three hundred thirty-three million, nine hundred twenty-nine thousand, four hundred eighty-nine".