5511340231 has 4 divisors (see below), whose sum is σ = 5539896592. Its totient is φ = 5482783872.

The previous prime is 5511340213. The next prime is 5511340267. The reversal of 5511340231 is 1320431155.

It is a happy number.

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 5511340231 - 2⁷ = 5511340103 is a prime.

It is a super-2 number, since 2×5511340231² = 60749742283678266722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5511340196 and 5511340205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511343231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14277891 + ... + 14278276.

It is an arithmetic number, because the mean of its divisors is an integer number (1384974148).

Almost surely, 2^5511340231 is an apocalyptic number.

5511340231 is a deficient number, since it is larger than the sum of its proper divisors (28556361).

5511340231 is a wasteful number, since it uses less digits than its factorization.

5511340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28556360.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 5511340231 is about 74238.4013230350. The cubic root of 5511340231 is about 1766.3865155905.

Adding to 5511340231 its reverse (1320431155), we get a palindrome (6831771386).

The spelling of 5511340231 in words is "five billion, five hundred eleven million, three hundred forty thousand, two hundred thirty-one".