11223121337 has 2 divisors, whose sum is σ = 11223121338. Its totient is φ = 11223121336.

The previous prime is 11223121309. The next prime is 11223121339. The reversal of 11223121337 is 73312132211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9423749776 + 1799371561 = 97076^2 + 42419^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223121337 - 2¹⁰ = 11223120313 is a prime.

Together with 11223121339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11223121339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611560668 + 5611560669.

It is an arithmetic number, because the mean of its divisors is an integer number (5611560669).

Almost surely, 2^11223121337 is an apocalyptic number.

It is an amenable number.

11223121337 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223121337 is an equidigital number, since it uses as much as digits as its factorization.

11223121337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

Adding to 11223121337 its reverse (73312132211), we get a palindrome (84535253548).

The spelling of 11223121337 in words is "eleven billion, two hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty-seven".