1130566021 has 16 divisors (see below), whose sum is σ = 1261295280. Its totient is φ = 1006663680.

The previous prime is 1130565983. The next prime is 1130566027. The reversal of 1130566021 is 1206650311.

It can be written as a sum of positive squares in 8 ways, for example, as 193349025 + 937216996 = 13905^2 + 30614^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130566021 - 2¹⁹ = 1130041733 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 (1130566027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35521 + ... + 59353.

It is an arithmetic number, because the mean of its divisors is an integer number (78830955).

Almost surely, 2^1130566021 is an apocalyptic number.

It is an amenable number.

1130566021 is a deficient number, since it is larger than the sum of its proper divisors (130729259).

1130566021 is a wasteful number, since it uses less digits than its factorization.

1130566021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23976.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1130566021 is about 33623.8906285397. The cubic root of 1130566021 is about 1041.7543187199.

The spelling of 1130566021 in words is "one billion, one hundred thirty million, five hundred sixty-six thousand, twenty-one".