1111131143 has 16 divisors (see below), whose sum is σ = 1164770880. Its totient is φ = 1058593536.

The previous prime is 1111131139. The next prime is 1111131157. The reversal of 1111131143 is 3411311111.

It is a cyclic number.

It is not a de Polignac number, because 1111131143 - 2² = 1111131139 is a prime.

It is a super-2 number, since 2×1111131143² = 2469224833888972898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111131113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185371 + ... + 1186307.

It is an arithmetic number, because the mean of its divisors is an integer number (72798180).

Almost surely, 2^1111131143 is an apocalyptic number.

1111131143 is a deficient number, since it is larger than the sum of its proper divisors (53639737).

1111131143 is a wasteful number, since it uses less digits than its factorization.

1111131143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its digits is 36, while the sum is 17.

The square root of 1111131143 is about 33333.6338103124. The cubic root of 1111131143 is about 1035.7503929875.

Adding to 1111131143 its reverse (3411311111), we get a palindrome (4522442254).

The spelling of 1111131143 in words is "one billion, one hundred eleven million, one hundred thirty-one thousand, one hundred forty-three".