1121130211 has 4 divisors (see below), whose sum is σ = 1121254552. Its totient is φ = 1121005872.

The previous prime is 1121130209. The next prime is 1121130233. The reversal of 1121130211 is 1120311211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121130211 - 2¹ = 1121130209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121130191 and 1121130200.

It is not an unprimeable number, because it can be changed into a prime (1121130611) 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, 47490 + ... + 67063.

It is an arithmetic number, because the mean of its divisors is an integer number (280313638).

Almost surely, 2^1121130211 is an apocalyptic number.

1121130211 is a deficient number, since it is larger than the sum of its proper divisors (124341).

1121130211 is an equidigital number, since it uses as much as digits as its factorization.

1121130211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124340.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1121130211 is about 33483.2825601075. The cubic root of 1121130211 is about 1038.8480251927.

Adding to 1121130211 its reverse (1120311211), we get a palindrome (2241441422).

The spelling of 1121130211 in words is "one billion, one hundred twenty-one million, one hundred thirty thousand, two hundred eleven".