11033312291 has 2 divisors, whose sum is σ = 11033312292. Its totient is φ = 11033312290.

The previous prime is 11033312281. The next prime is 11033312327. The reversal of 11033312291 is 19221333011.

It is a weak prime.

It is an emirp because it is prime and its reverse (19221333011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11033312291 - 2¹⁴ = 11033295907 is a prime.

It is a super-2 number, since 2×11033312291² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11033312291.

It is not a weakly prime, because it can be changed into another prime (11033312261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5516656145 + 5516656146.

It is an arithmetic number, because the mean of its divisors is an integer number (5516656146).

Almost surely, 2^11033312291 is an apocalyptic number.

11033312291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11033312291 is an equidigital number, since it uses as much as digits as its factorization.

11033312291 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 26.

The spelling of 11033312291 in words is "eleven billion, thirty-three million, three hundred twelve thousand, two hundred ninety-one".