2011101830 has 48 divisors (see below), whose sum is σ = 3868080480. Its totient is φ = 751411584.

The previous prime is 2011101817. The next prime is 2011101877. The reversal of 2011101830 is 381011102.

It is a junction number, because it is equal to n+sod(n) for n = 2011101799 and 2011101808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422906 + ... + 427634.

It is an arithmetic number, because the mean of its divisors is an integer number (80585010).

Almost surely, 2^2011101830 is an apocalyptic number.

2011101830 is a deficient number, since it is larger than the sum of its proper divisors (1856978650).

2011101830 is a wasteful number, since it uses less digits than its factorization.

2011101830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4845 (or 4802 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 2011101830 is about 44845.3100111929. The cubic root of 2011101830 is about 1262.2479878645.

Adding to 2011101830 its reverse (381011102), we get a palindrome (2392112932).

The spelling of 2011101830 in words is "two billion, eleven million, one hundred one thousand, eight hundred thirty".