11133310261 has 2 divisors, whose sum is σ = 11133310262. Its totient is φ = 11133310260.

The previous prime is 11133310229. The next prime is 11133310267. The reversal of 11133310261 is 16201333111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10425431025 + 707879236 = 102105^2 + 26606^2 .

It is a cyclic number.

It is not a de Polignac number, because 11133310261 - 2⁵ = 11133310229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11133310267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566655130 + 5566655131.

It is an arithmetic number, because the mean of its divisors is an integer number (5566655131).

Almost surely, 2^11133310261 is an apocalyptic number.

It is an amenable number.

11133310261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11133310261 is an equidigital number, since it uses as much as digits as its factorization.

11133310261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 11133310261 its reverse (16201333111), we get a palindrome (27334643372).

The spelling of 11133310261 in words is "eleven billion, one hundred thirty-three million, three hundred ten thousand, two hundred sixty-one".