1811103122 has 16 divisors (see below), whose sum is σ = 2849472000. Its totient is φ = 861687552.

The previous prime is 1811103113. The next prime is 1811103187. The reversal of 1811103122 is 2213011181.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1811103094 and 1811103103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93122 + ... + 110877.

It is an arithmetic number, because the mean of its divisors is an integer number (178092000).

Almost surely, 2^1811103122 is an apocalyptic number.

1811103122 is a deficient number, since it is larger than the sum of its proper divisors (1038368878).

1811103122 is a wasteful number, since it uses less digits than its factorization.

1811103122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204217.

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

The square root of 1811103122 is about 42557.0572525874. The cubic root of 1811103122 is about 1218.9364380414.

The spelling of 1811103122 in words is "one billion, eight hundred eleven million, one hundred three thousand, one hundred twenty-two".