1132020021 has 64 divisors (see below), whose sum is σ = 1801046016. Its totient is φ = 624691200.

The previous prime is 1132020011. The next prime is 1132020023. The reversal of 1132020021 is 1200202311.

It is not a de Polignac number, because 1132020021 - 2⁹ = 1132019509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1132019979 and 1132020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132020023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4028401 + ... + 4028681.

It is an arithmetic number, because the mean of its divisors is an integer number (28141344).

Almost surely, 2^1132020021 is an apocalyptic number.

1132020021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1132020021 is a deficient number, since it is larger than the sum of its proper divisors (669025995).

1132020021 is a wasteful number, since it uses less digits than its factorization.

1132020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1132020021 is about 33645.5052124351. The cubic root of 1132020021 is about 1042.2007210433.

Adding to 1132020021 its reverse (1200202311), we get a palindrome (2332222332).

The spelling of 1132020021 in words is "one billion, one hundred thirty-two million, twenty thousand, twenty-one".