1121043235 has 32 divisors (see below), whose sum is σ = 1513709568. Its totient is φ = 791372160.

The previous prime is 1121043221. The next prime is 1121043241. The reversal of 1121043235 is 5323401211.

It is a happy number.

It is not a de Polignac number, because 1121043235 - 2²¹ = 1118946083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163894 + ... + 170596.

It is an arithmetic number, because the mean of its divisors is an integer number (47303424).

Almost surely, 2^1121043235 is an apocalyptic number.

1121043235 is a deficient number, since it is larger than the sum of its proper divisors (392666333).

1121043235 is a wasteful number, since it uses less digits than its factorization.

1121043235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1121043235 is about 33481.9837375267. The cubic root of 1121043235 is about 1038.8211602840.

Adding to 1121043235 its reverse (5323401211), we get a palindrome (6444444446).

It can be divided in two parts, 11210 and 43235, that added together give a palindrome (54445).

The spelling of 1121043235 in words is "one billion, one hundred twenty-one million, forty-three thousand, two hundred thirty-five".