1121340111 has 16 divisors (see below), whose sum is σ = 1619887104. Its totient is φ = 687222144.

The previous prime is 1121340047. The next prime is 1121340127. The reversal of 1121340111 is 1110431211.

1121340111 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1121340111 - 2⁶ = 1121340047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121340161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253471 + ... + 257856.

It is an arithmetic number, because the mean of its divisors is an integer number (101242944).

Almost surely, 2^1121340111 is an apocalyptic number.

1121340111 is a deficient number, since it is larger than the sum of its proper divisors (498546993).

1121340111 is a wasteful number, since it uses less digits than its factorization.

1121340111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511390.

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

The square root of 1121340111 is about 33486.4168133887. The cubic root of 1121340111 is about 1038.9128528079.

Adding to 1121340111 its reverse (1110431211), we get a palindrome (2231771322).

The spelling of 1121340111 in words is "one billion, one hundred twenty-one million, three hundred forty thousand, one hundred eleven".