5311033261 has 2 divisors, whose sum is σ = 5311033262. Its totient is φ = 5311033260.

The previous prime is 5311033241. The next prime is 5311033279. The reversal of 5311033261 is 1623301135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4267355625 + 1043677636 = 65325^2 + 32306^2 .

It is a cyclic number.

It is not a de Polignac number, because 5311033261 - 2²¹ = 5308936109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5311033241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2655516630 + 2655516631.

It is an arithmetic number, because the mean of its divisors is an integer number (2655516631).

Almost surely, 2^5311033261 is an apocalyptic number.

It is an amenable number.

5311033261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5311033261 is an equidigital number, since it uses as much as digits as its factorization.

5311033261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 5311033261 is about 72876.8362444474. The cubic root of 5311033261 is about 1744.7224141722.

Adding to 5311033261 its reverse (1623301135), we get a palindrome (6934334396).

The spelling of 5311033261 in words is "five billion, three hundred eleven million, thirty-three thousand, two hundred sixty-one".