1121002443 has 48 divisors (see below), whose sum is σ = 1870192800. Its totient is φ = 662745600.

The previous prime is 1121002433. The next prime is 1121002469. The reversal of 1121002443 is 3442001211.

1121002443 is a `hidden beast` number, since 11 + 210 + 0 + 2 + 443 = 666.

It is not a de Polignac number, because 1121002443 - 2⁴ = 1121002427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121002433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129763 + ... + 138131.

It is an arithmetic number, because the mean of its divisors is an integer number (38962350).

Almost surely, 2^1121002443 is an apocalyptic number.

1121002443 is a deficient number, since it is larger than the sum of its proper divisors (749190357).

1121002443 is a wasteful number, since it uses less digits than its factorization.

1121002443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441 (or 8424 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1121002443 is about 33481.3745685568. The cubic root of 1121002443 is about 1038.8085600840.

Adding to 1121002443 its reverse (3442001211), we get a palindrome (4563003654).

The spelling of 1121002443 in words is "one billion, one hundred twenty-one million, two thousand, four hundred forty-three".