11481311 has 2 divisors, whose sum is σ = 11481312. Its totient is φ = 11481310.

The previous prime is 11481293. The next prime is 11481317. The reversal of 11481311 is 11318411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11481311 - 2⁶ = 11481247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11481317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5740655 + 5740656.

It is an arithmetic number, because the mean of its divisors is an integer number (5740656).

Almost surely, 2^11481311 is an apocalyptic number.

11481311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11481311 is an equidigital number, since it uses as much as digits as its factorization.

11481311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 20.

The square root of 11481311 is about 3388.4083284044. The cubic root of 11481311 is about 225.5955318159.

Adding to 11481311 its reverse (11318411), we get a palindrome (22799722).

The spelling of 11481311 in words is "eleven million, four hundred eighty-one thousand, three hundred eleven".