1130012021 has 8 divisors (see below), whose sum is σ = 1136153304. Its totient is φ = 1123882240.

The previous prime is 1130011991. The next prime is 1130012063. The reversal of 1130012021 is 1202100311.

It can be written as a sum of positive squares in 4 ways, for example, as 100500625 + 1029511396 = 10025^2 + 32086^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1130012021 - 2¹⁴ = 1129995637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130011993 and 1130012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130012071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253391 + ... + 257811.

It is an arithmetic number, because the mean of its divisors is an integer number (142019163).

Almost surely, 2^1130012021 is an apocalyptic number.

It is an amenable number.

1130012021 is a deficient number, since it is larger than the sum of its proper divisors (6141283).

1130012021 is a wasteful number, since it uses less digits than its factorization.

1130012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1130012021 is about 33615.6514290591. The cubic root of 1130012021 is about 1041.5841307561.

Adding to 1130012021 its reverse (1202100311), we get a palindrome (2332112332).

The spelling of 1130012021 in words is "one billion, one hundred thirty million, twelve thousand, twenty-one".