1101443243 has 16 divisors (see below), whose sum is σ = 1229502240. Its totient is φ = 980582400.

The previous prime is 1101443227. The next prime is 1101443249. The reversal of 1101443243 is 3423441011.

It is not a de Polignac number, because 1101443243 - 2⁴ = 1101443227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101443249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243563 + ... + 248043.

It is an arithmetic number, because the mean of its divisors is an integer number (76843890).

Almost surely, 2^1101443243 is an apocalyptic number.

1101443243 is a deficient number, since it is larger than the sum of its proper divisors (128058997).

1101443243 is a wasteful number, since it uses less digits than its factorization.

1101443243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5278.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1101443243 is about 33187.9984783656. The cubic root of 1101443243 is about 1032.7313821088.

Adding to 1101443243 its reverse (3423441011), we get a palindrome (4524884254).

The spelling of 1101443243 in words is "one billion, one hundred one million, four hundred forty-three thousand, two hundred forty-three".