2003123013 has 8 divisors (see below), whose sum is σ = 2811400800. Its totient is φ = 1265130288.

The previous prime is 2003123011. The next prime is 2003123029. The reversal of 2003123013 is 3103213002.

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

It is not a de Polignac number, because 2003123013 - 2¹ = 2003123011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2003122983 and 2003123001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003123011) 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, 17571198 + ... + 17571311.

It is an arithmetic number, because the mean of its divisors is an integer number (351425100).

Almost surely, 2^2003123013 is an apocalyptic number.

It is an amenable number.

2003123013 is a deficient number, since it is larger than the sum of its proper divisors (808277787).

2003123013 is a wasteful number, since it uses less digits than its factorization.

2003123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35142531.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2003123013 is about 44756.2622769149. The cubic root of 2003123013 is about 1260.5765004860.

Adding to 2003123013 its reverse (3103213002), we get a palindrome (5106336015).

It can be divided in two parts, 200 and 3123013, that added together give a palindrome (3123213).

The spelling of 2003123013 in words is "two billion, three million, one hundred twenty-three thousand, thirteen".