123335320409 has 8 divisors (see below), whose sum is σ = 142247814720. Its totient is φ = 104746116816.

The previous prime is 123335320397. The next prime is 123335320429. The reversal of 123335320409 is 904023533321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123335320409 - 2⁴ = 123335320393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123335320429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80821859 + ... + 80823384.

It is an arithmetic number, because the mean of its divisors is an integer number (17780976840).

Almost surely, 2^123335320409 is an apocalyptic number.

It is an amenable number.

123335320409 is a deficient number, since it is larger than the sum of its proper divisors (18912494311).

123335320409 is a wasteful number, since it uses less digits than its factorization.

123335320409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161645359.

The product of its (nonzero) digits is 58320, while the sum is 35.

The spelling of 123335320409 in words is "one hundred twenty-three billion, three hundred thirty-five million, three hundred twenty thousand, four hundred nine".