11081851 has 4 divisors (see below), whose sum is σ = 12089304. Its totient is φ = 10074400.

The previous prime is 11081843. The next prime is 11081879. The reversal of 11081851 is 15818011.

11081851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15818011 = 11 ⋅1438001.

It is a cyclic number.

It is not a de Polignac number, because 11081851 - 2³ = 11081843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11081891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503710 + ... + 503731.

It is an arithmetic number, because the mean of its divisors is an integer number (3022326).

Almost surely, 2^11081851 is an apocalyptic number.

11081851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11081851 is a deficient number, since it is larger than the sum of its proper divisors (1007453).

11081851 is a wasteful number, since it uses less digits than its factorization.

11081851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007452.

The product of its (nonzero) digits is 320, while the sum is 25.

The square root of 11081851 is about 3328.9414233357. The cubic root of 11081851 is about 222.9482676757.

Adding to 11081851 its reverse (15818011), we get a palindrome (26899862).

The spelling of 11081851 in words is "eleven million, eighty-one thousand, eight hundred fifty-one".