5511343231 has 2 divisors, whose sum is σ = 5511343232. Its totient is φ = 5511343230.

The previous prime is 5511343217. The next prime is 5511343259. The reversal of 5511343231 is 1323431155.

It is a happy number.

It is an a-pointer prime, because the next prime (5511343259) can be obtained adding 5511343231 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5511343231 - 2⁵ = 5511343199 is a prime.

It is a super-2 number, since 2×5511343231² = 60749808419779038722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5511343231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5511343031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755671615 + 2755671616.

It is an arithmetic number, because the mean of its divisors is an integer number (2755671616).

Almost surely, 2^5511343231 is an apocalyptic number.

5511343231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5511343231 is an equidigital number, since it uses as much as digits as its factorization.

5511343231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 28.

The square root of 5511343231 is about 74238.4215282087. The cubic root of 5511343231 is about 1766.3868360908.

Adding to 5511343231 its reverse (1323431155), we get a palindrome (6834774386).

The spelling of 5511343231 in words is "five billion, five hundred eleven million, three hundred forty-three thousand, two hundred thirty-one".