1112311243 has 8 divisors (see below), whose sum is σ = 1175026320. Its totient is φ = 1050013440.

The previous prime is 1112311223. The next prime is 1112311273. The reversal of 1112311243 is 3421132111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112311243 - 2¹³ = 1112303051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 1112311243.

It is not an unprimeable number, because it can be changed into a prime (1112311223) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 98830 + ... + 109507.

It is an arithmetic number, because the mean of its divisors is an integer number (146878290).

Almost surely, 2^1112311243 is an apocalyptic number.

1112311243 is a deficient number, since it is larger than the sum of its proper divisors (62715077).

1112311243 is a wasteful number, since it uses less digits than its factorization.

1112311243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208637.

The product of its digits is 144, while the sum is 19.

The square root of 1112311243 is about 33351.3304532218. The cubic root of 1112311243 is about 1036.1169433515.

Adding to 1112311243 its reverse (3421132111), we get a palindrome (4533443354).

It can be divided in two parts, 11123 and 11243, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 1112311243 in words is "one billion, one hundred twelve million, three hundred eleven thousand, two hundred forty-three".