123837229469 has 2 divisors, whose sum is σ = 123837229470. Its totient is φ = 123837229468.

The previous prime is 123837229459. The next prime is 123837229519. The reversal of 123837229469 is 964922738321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122911244569 + 925984900 = 350587^2 + 30430^2 .

It is an emirp because it is prime and its reverse (964922738321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123837229469 - 2⁸ = 123837229213 is a prime.

It is a super-3 number, since 3×123837229469³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123837229429) 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, 61918614734 + 61918614735.

It is an arithmetic number, because the mean of its divisors is an integer number (61918614735).

Almost surely, 2^123837229469 is an apocalyptic number.

It is an amenable number.

123837229469 is a deficient number, since it is larger than the sum of its proper divisors (1).

123837229469 is an equidigital number, since it uses as much as digits as its factorization.

123837229469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 56.

The spelling of 123837229469 in words is "one hundred twenty-three billion, eight hundred thirty-seven million, two hundred twenty-nine thousand, four hundred sixty-nine".