1112403143 has 4 divisors (see below), whose sum is σ = 1177838640. Its totient is φ = 1046967648.

The previous prime is 1112403139. The next prime is 1112403161. The reversal of 1112403143 is 3413042111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3413042111 = 17 ⋅200767183.

It is a cyclic number.

It is not a de Polignac number, because 1112403143 - 2² = 1112403139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112403343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32717723 + ... + 32717756.

It is an arithmetic number, because the mean of its divisors is an integer number (294459660).

Almost surely, 2^1112403143 is an apocalyptic number.

1112403143 is a deficient number, since it is larger than the sum of its proper divisors (65435497).

1112403143 is an equidigital number, since it uses as much as digits as its factorization.

1112403143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65435496.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1112403143 is about 33352.7081808959. The cubic root of 1112403143 is about 1036.1454774887.

Adding to 1112403143 its reverse (3413042111), we get a palindrome (4525445254).

The spelling of 1112403143 in words is "one billion, one hundred twelve million, four hundred three thousand, one hundred forty-three".