1123040143 has 8 divisors (see below), whose sum is σ = 1151994816. Its totient is φ = 1094160000.

The previous prime is 1123040123. The next prime is 1123040203. The reversal of 1123040143 is 3410403211.

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 1123040143 - 2¹⁷ = 1122909071 is a prime.

It is a super-2 number, since 2×1123040143² = 2522438325578920898, which contains 22 as substring.

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 1123040143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123040123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12555 + ... + 49027.

It is an arithmetic number, because the mean of its divisors is an integer number (143999352).

Almost surely, 2^1123040143 is an apocalyptic number.

1123040143 is a deficient number, since it is larger than the sum of its proper divisors (28954673).

1123040143 is an equidigital number, since it uses as much as digits as its factorization.

1123040143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37265.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1123040143 is about 33511.7911040278. The cubic root of 1123040143 is about 1039.4376098298.

Adding to 1123040143 its reverse (3410403211), we get a palindrome (4533443354).

The spelling of 1123040143 in words is "one billion, one hundred twenty-three million, forty thousand, one hundred forty-three".