1121401443 has 8 divisors (see below), whose sum is σ = 1496025856. Its totient is φ = 747189000.

The previous prime is 1121401441. The next prime is 1121401499. The reversal of 1121401443 is 3441041211.

1121401443 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1121401443 - 2¹ = 1121401441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121401441) 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, 96583 + ... + 107568.

It is an arithmetic number, because the mean of its divisors is an integer number (187003232).

Almost surely, 2^1121401443 is an apocalyptic number.

1121401443 is a deficient number, since it is larger than the sum of its proper divisors (374624413).

1121401443 is a wasteful number, since it uses less digits than its factorization.

1121401443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205985.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1121401443 is about 33487.3325751694. The cubic root of 1121401443 is about 1038.9317936689.

Adding to 1121401443 its reverse (3441041211), we get a palindrome (4562442654).

The spelling of 1121401443 in words is "one billion, one hundred twenty-one million, four hundred one thousand, four hundred forty-three".