383123013 has 24 divisors (see below), whose sum is σ = 639944928. Its totient is φ = 202085856.

The previous prime is 383123009. The next prime is 383123021. The reversal of 383123013 is 310321383.

It is not a de Polignac number, because 383123013 - 2² = 383123009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383123003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98331 + ... + 102152.

It is an arithmetic number, because the mean of its divisors is an integer number (26664372).

Almost surely, 2^383123013 is an apocalyptic number.

It is an amenable number.

383123013 is a deficient number, since it is larger than the sum of its proper divisors (256821915).

383123013 is a wasteful number, since it uses less digits than its factorization.

383123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200513 (or 200506 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 383123013 is about 19573.5283738012. The cubic root of 383123013 is about 726.2944851059.

Adding to 383123013 its reverse (310321383), we get a palindrome (693444396).

The spelling of 383123013 in words is "three hundred eighty-three million, one hundred twenty-three thousand, thirteen".