11330330261 has 2 divisors, whose sum is σ = 11330330262. Its totient is φ = 11330330260.

The previous prime is 11330330251. The next prime is 11330330351. The reversal of 11330330261 is 16203303311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9613802500 + 1716527761 = 98050^2 + 41431^2 .

It is a cyclic number.

It is not a de Polignac number, because 11330330261 - 2¹⁰ = 11330329237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11330330201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665165130 + 5665165131.

It is an arithmetic number, because the mean of its divisors is an integer number (5665165131).

Almost surely, 2^11330330261 is an apocalyptic number.

It is an amenable number.

11330330261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11330330261 is an equidigital number, since it uses as much as digits as its factorization.

11330330261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 11330330261 its reverse (16203303311), we get a palindrome (27533633572).

The spelling of 11330330261 in words is "eleven billion, three hundred thirty million, three hundred thirty thousand, two hundred sixty-one".