1121122311 has 8 divisors (see below), whose sum is σ = 1535230704. Its totient is φ = 727214400.

The previous prime is 1121122291. The next prime is 1121122319. The reversal of 1121122311 is 1132211211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121122311 - 2⁷ = 1121122183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121122319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5049990 + ... + 5050211.

It is an arithmetic number, because the mean of its divisors is an integer number (191903838).

Almost surely, 2^1121122311 is an apocalyptic number.

1121122311 is a deficient number, since it is larger than the sum of its proper divisors (414108393).

1121122311 is a wasteful number, since it uses less digits than its factorization.

1121122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100241.

The product of its digits is 24, while the sum is 15.

The square root of 1121122311 is about 33483.1645905819. The cubic root of 1121122311 is about 1038.8455851197.

Adding to 1121122311 its reverse (1132211211), we get a palindrome (2253333522).

Subtracting 1121122311 from its reverse (1132211211), we obtain a square (11088900 = 3330²).

The spelling of 1121122311 in words is "one billion, one hundred twenty-one million, one hundred twenty-two thousand, three hundred eleven".