13530023003 has 4 divisors (see below), whose sum is σ = 15462883440. Its totient is φ = 11597162568.

The previous prime is 13530022937. The next prime is 13530023011. The reversal of 13530023003 is 30032003531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13530023003 - 2³⁰ = 12456281179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13530023203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966430208 + ... + 966430221.

It is an arithmetic number, because the mean of its divisors is an integer number (3865720860).

Almost surely, 2^13530023003 is an apocalyptic number.

13530023003 is a deficient number, since it is larger than the sum of its proper divisors (1932860437).

13530023003 is an equidigital number, since it uses as much as digits as its factorization.

13530023003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932860436.

The product of its (nonzero) digits is 810, while the sum is 20.

Adding to 13530023003 its reverse (30032003531), we get a palindrome (43562026534).

The spelling of 13530023003 in words is "thirteen billion, five hundred thirty million, twenty-three thousand, three".