1130320421 has 4 divisors (see below), whose sum is σ = 1130557344. Its totient is φ = 1130083500.

The previous prime is 1130320397. The next prime is 1130320427. The reversal of 1130320421 is 1240230311.

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 1130320421 - 2¹⁰ = 1130319397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1130320421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130320427) 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, 111155 + ... + 120896.

It is an arithmetic number, because the mean of its divisors is an integer number (282639336).

Almost surely, 2^1130320421 is an apocalyptic number.

It is an amenable number.

1130320421 is a deficient number, since it is larger than the sum of its proper divisors (236923).

1130320421 is an equidigital number, since it uses as much as digits as its factorization.

1130320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236922.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1130320421 is about 33620.2382650689. The cubic root of 1130320421 is about 1041.6788776325.

Adding to 1130320421 its reverse (1240230311), we get a palindrome (2370550732).

The spelling of 1130320421 in words is "one billion, one hundred thirty million, three hundred twenty thousand, four hundred twenty-one".