5611012403 has 4 divisors (see below), whose sum is σ = 5854969488. Its totient is φ = 5367055320.

The previous prime is 5611012343. The next prime is 5611012411. The reversal of 5611012403 is 3042101165.

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 5611012403 - 2⁶ = 5611012339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 243957061 = 5611012403 / (5 + 6 + 1 + 1 + 0 + 1 + 2 + 4 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5611018403) 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, 121978508 + ... + 121978553.

It is an arithmetic number, because the mean of its divisors is an integer number (1463742372).

Almost surely, 2^5611012403 is an apocalyptic number.

5611012403 is a deficient number, since it is larger than the sum of its proper divisors (243957085).

5611012403 is a wasteful number, since it uses less digits than its factorization.

5611012403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243957084.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 5611012403 is about 74906.6913099224. The cubic root of 5611012403 is about 1776.9712837511.

Adding to 5611012403 its reverse (3042101165), we get a palindrome (8653113568).

The spelling of 5611012403 in words is "five billion, six hundred eleven million, twelve thousand, four hundred three".