1121641232 has 20 divisors (see below), whose sum is σ = 2301014556. Its totient is φ = 527831040.

The previous prime is 1121641219. The next prime is 1121641237. The reversal of 1121641232 is 2321461211.

It can be written as a sum of positive squares in 2 ways, for example, as 812022016 + 309619216 = 28496^2 + 17596^2 .

It is a super-3 number, since 3×1121641232³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121641198 and 1121641207.

It is not an unprimeable number, because it can be changed into a prime (1121641237) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2061569 + ... + 2062112.

Almost surely, 2^1121641232 is an apocalyptic number.

It is an amenable number.

1121641232 is an abundant number, since it is smaller than the sum of its proper divisors (1179373324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121641232 is a wasteful number, since it uses less digits than its factorization.

1121641232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123706 (or 4123700 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1121641232 is about 33490.9126779191. The cubic root of 1121641232 is about 1039.0058399030.

The spelling of 1121641232 in words is "one billion, one hundred twenty-one million, six hundred forty-one thousand, two hundred thirty-two".