1121023343 has 4 divisors (see below), whose sum is σ = 1222934568. Its totient is φ = 1019112120.

The previous prime is 1121023307. The next prime is 1121023357. The reversal of 1121023343 is 3433201211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121023343 - 2²⁰ = 1119974767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121023303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50955596 + ... + 50955617.

It is an arithmetic number, because the mean of its divisors is an integer number (305733642).

Almost surely, 2^1121023343 is an apocalyptic number.

1121023343 is a deficient number, since it is larger than the sum of its proper divisors (101911225).

1121023343 is a wasteful number, since it uses less digits than its factorization.

1121023343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101911224.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1121023343 is about 33481.6866809305. The cubic root of 1121023343 is about 1038.8150159022.

Adding to 1121023343 its reverse (3433201211), we get a palindrome (4554224554).

The spelling of 1121023343 in words is "one billion, one hundred twenty-one million, twenty-three thousand, three hundred forty-three".