11321137 has 2 divisors, whose sum is σ = 11321138. Its totient is φ = 11321136.

The previous prime is 11321119. The next prime is 11321147. The reversal of 11321137 is 73112311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5934096 + 5387041 = 2436^2 + 2321^2 .

It is an emirp because it is prime and its reverse (73112311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11321137 - 2¹¹ = 11319089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11321147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660568 + 5660569.

It is an arithmetic number, because the mean of its divisors is an integer number (5660569).

Almost surely, 2^11321137 is an apocalyptic number.

It is an amenable number.

11321137 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321137 is an equidigital number, since it uses as much as digits as its factorization.

11321137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126, while the sum is 19.

The square root of 11321137 is about 3364.6897330958. The cubic root of 11321137 is about 224.5415322886.

Adding to 11321137 its reverse (73112311), we get a palindrome (84433448).

The spelling of 11321137 in words is "eleven million, three hundred twenty-one thousand, one hundred thirty-seven".