11481331 has 2 divisors, whose sum is σ = 11481332. Its totient is φ = 11481330.

The previous prime is 11481319. The next prime is 11481343. The reversal of 11481331 is 13318411.

It is a balanced prime because it is at equal distance from previous prime (11481319) and next prime (11481343).

It is a cyclic number.

It is not a de Polignac number, because 11481331 - 2⁷ = 11481203 is a prime.

It is a super-2 number, since 2×11481331² = 263641923063122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11481311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5740665 + 5740666.

It is an arithmetic number, because the mean of its divisors is an integer number (5740666).

Almost surely, 2^11481331 is an apocalyptic number.

11481331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11481331 is an equidigital number, since it uses as much as digits as its factorization.

11481331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 22.

The square root of 11481331 is about 3388.4112796412. The cubic root of 11481331 is about 225.5956628087.

Adding to 11481331 its reverse (13318411), we get a palindrome (24799742).

The spelling of 11481331 in words is "eleven million, four hundred eighty-one thousand, three hundred thirty-one".