1116532021 has 4 divisors (see below), whose sum is σ = 1218034944. Its totient is φ = 1015029100.

The previous prime is 1116532009. The next prime is 1116532037. The reversal of 1116532021 is 1202356111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1116532021 - 2⁷ = 1116531893 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1116531983 and 1116532001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116532121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50751445 + ... + 50751466.

It is an arithmetic number, because the mean of its divisors is an integer number (304508736).

Almost surely, 2^1116532021 is an apocalyptic number.

1116532021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1116532021 is a deficient number, since it is larger than the sum of its proper divisors (101502923).

1116532021 is a wasteful number, since it uses less digits than its factorization.

1116532021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101502922.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1116532021 is about 33414.5480442277. The cubic root of 1116532021 is about 1037.4258394952.

Adding to 1116532021 its reverse (1202356111), we get a palindrome (2318888132).

The spelling of 1116532021 in words is "one billion, one hundred sixteen million, five hundred thirty-two thousand, twenty-one".