20130544003 has 4 divisors (see below), whose sum is σ = 20142979560. Its totient is φ = 20118108448.

The previous prime is 20130544001. The next prime is 20130544013. The reversal of 20130544003 is 30044503102.

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 20130544003 - 2¹ = 20130544001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130544001) 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, 6215350 + ... + 6218587.

It is an arithmetic number, because the mean of its divisors is an integer number (5035744890).

Almost surely, 2^20130544003 is an apocalyptic number.

20130544003 is a deficient number, since it is larger than the sum of its proper divisors (12435557).

20130544003 is a wasteful number, since it uses less digits than its factorization.

20130544003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12435556.

The product of its (nonzero) digits is 1440, while the sum is 22.

The spelling of 20130544003 in words is "twenty billion, one hundred thirty million, five hundred forty-four thousand, three".