123244013 has 8 divisors (see below), whose sum is σ = 130153920. Its totient is φ = 116376480.

The previous prime is 123244007. The next prime is 123244031. The reversal of 123244013 is 310442321.

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 123244013 - 2¹⁰ = 123242989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123244613) 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, 4520 + ... + 16337.

It is an arithmetic number, because the mean of its divisors is an integer number (16269240).

Almost surely, 2^123244013 is an apocalyptic number.

It is an amenable number.

123244013 is a deficient number, since it is larger than the sum of its proper divisors (6909907).

123244013 is a wasteful number, since it uses less digits than its factorization.

123244013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21187.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123244013 is about 11101.5320113937. The cubic root of 123244013 is about 497.6476341055.

Adding to 123244013 its reverse (310442321), we get a palindrome (433686334).

The spelling of 123244013 in words is "one hundred twenty-three million, two hundred forty-four thousand, thirteen".