1142213111 has 16 divisors (see below), whose sum is σ = 1274011200. Its totient is φ = 1016779008.

The previous prime is 1142213099. The next prime is 1142213117. The reversal of 1142213111 is 1113122411.

It is a cyclic number.

It is not a de Polignac number, because 1142213111 - 2¹⁰ = 1142212087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142213111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142213117) 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, 496115 + ... + 498411.

It is an arithmetic number, because the mean of its divisors is an integer number (79625700).

Almost surely, 2^1142213111 is an apocalyptic number.

1142213111 is a deficient number, since it is larger than the sum of its proper divisors (131798089).

1142213111 is a wasteful number, since it uses less digits than its factorization.

1142213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658.

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

The square root of 1142213111 is about 33796.6434871867. The cubic root of 1142213111 is about 1045.3194877926.

Adding to 1142213111 its reverse (1113122411), we get a palindrome (2255335522).

The spelling of 1142213111 in words is "one billion, one hundred forty-two million, two hundred thirteen thousand, one hundred eleven".