2013203123 has 8 divisors (see below), whose sum is σ = 2056665600. Its totient is φ = 1969766920.

The previous prime is 2013203119. The next prime is 2013203149. The reversal of 2013203123 is 3213023102.

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 2013203123 - 2² = 2013203119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013203183) 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, 301778 + ... + 308376.

It is an arithmetic number, because the mean of its divisors is an integer number (257083200).

Almost surely, 2^2013203123 is an apocalyptic number.

2013203123 is a deficient number, since it is larger than the sum of its proper divisors (43462477).

2013203123 is an equidigital number, since it uses as much as digits as its factorization.

2013203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2013203123 is about 44868.7321305160. The cubic root of 2013203123 is about 1262.6874533671.

Adding to 2013203123 its reverse (3213023102), we get a palindrome (5226226225).

The spelling of 2013203123 in words is "two billion, thirteen million, two hundred three thousand, one hundred twenty-three".