11223312169 has 2 divisors, whose sum is σ = 11223312170. Its totient is φ = 11223312168.

The previous prime is 11223312151. The next prime is 11223312193. The reversal of 11223312169 is 96121332211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8814956544 + 2408355625 = 93888^2 + 49075^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223312169 - 2³¹ = 9075828521 is a prime.

It is a super-2 number, since 2×11223312169² (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 11223312169.

It is not a weakly prime, because it can be changed into another prime (11223312119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611656084 + 5611656085.

It is an arithmetic number, because the mean of its divisors is an integer number (5611656085).

Almost surely, 2^11223312169 is an apocalyptic number.

It is an amenable number.

11223312169 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223312169 is an equidigital number, since it uses as much as digits as its factorization.

11223312169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The spelling of 11223312169 in words is "eleven billion, two hundred twenty-three million, three hundred twelve thousand, one hundred sixty-nine".