11481811 has 12 divisors (see below), whose sum is σ = 13031872. Its totient is φ = 10098000.

The previous prime is 11481797. The next prime is 11481829. The reversal of 11481811 is 11818411.

It is not a de Polignac number, because 11481811 - 2⁷ = 11481683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11481311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2221 + ... + 5281.

Almost surely, 2^11481811 is an apocalyptic number.

11481811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11481811 is a deficient number, since it is larger than the sum of its proper divisors (1550061).

11481811 is a wasteful number, since it uses less digits than its factorization.

11481811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114 (or 3103 counting only the distinct ones).

The product of its digits is 256, while the sum is 25.

The square root of 11481811 is about 3388.4821085554. The cubic root of 11481811 is about 225.5988065909.

The spelling of 11481811 in words is "eleven million, four hundred eighty-one thousand, eight hundred eleven".