1111143112 has 8 divisors (see below), whose sum is σ = 2083393350. Its totient is φ = 555571552.

The previous prime is 1111143083. The next prime is 1111143139. The reversal of 1111143112 is 2113411111.

1111143112 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 1057940676 + 53202436 = 32526^2 + 7294^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69446437 + ... + 69446452.

Almost surely, 2^1111143112 is an apocalyptic number.

It is an amenable number.

1111143112 is a deficient number, since it is larger than the sum of its proper divisors (972250238).

1111143112 is a wasteful number, since it uses less digits than its factorization.

1111143112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138892895 (or 138892891 counting only the distinct ones).

The product of its digits is 24, while the sum is 16.

The square root of 1111143112 is about 33333.8133432105. The cubic root of 1111143112 is about 1035.7541119760.

Adding to 1111143112 its reverse (2113411111), we get a palindrome (3224554223).

The spelling of 1111143112 in words is "one billion, one hundred eleven million, one hundred forty-three thousand, one hundred twelve".