2013040403 has 4 divisors (see below), whose sum is σ = 2196044088. Its totient is φ = 1830036720.

The previous prime is 2013040391. The next prime is 2013040429. The reversal of 2013040403 is 3040403102.

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 2013040403 - 2⁸ = 2013040147 is a prime.

It is a super-2 number, since 2×2013040403² = 8104663328220804818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013040433) 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, 91501826 + ... + 91501847.

It is an arithmetic number, because the mean of its divisors is an integer number (549011022).

Almost surely, 2^2013040403 is an apocalyptic number.

2013040403 is a deficient number, since it is larger than the sum of its proper divisors (183003685).

2013040403 is a wasteful number, since it uses less digits than its factorization.

2013040403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183003684.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2013040403 is about 44866.9188043931. The cubic root of 2013040403 is about 1262.6534329486.

Adding to 2013040403 its reverse (3040403102), we get a palindrome (5053443505).

The spelling of 2013040403 in words is "two billion, thirteen million, forty thousand, four hundred three".