11133021311 has 2 divisors, whose sum is σ = 11133021312. Its totient is φ = 11133021310.

The previous prime is 11133021283. The next prime is 11133021313. The reversal of 11133021311 is 11312033111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11133021311 - 2¹⁰ = 11133020287 is a prime.

It is a super-2 number, since 2×11133021311² (a number of 21 digits) contains 22 as substring.

Together with 11133021313, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11133021311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11133021313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566510655 + 5566510656.

It is an arithmetic number, because the mean of its divisors is an integer number (5566510656).

Almost surely, 2^11133021311 is an apocalyptic number.

11133021311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11133021311 is an equidigital number, since it uses as much as digits as its factorization.

11133021311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11133021311 its reverse (11312033111), we get a palindrome (22445054422).

The spelling of 11133021311 in words is "eleven billion, one hundred thirty-three million, twenty-one thousand, three hundred eleven".