1130503421 has 4 divisors (see below), whose sum is σ = 1130929344. Its totient is φ = 1130077500.

The previous prime is 1130503399. The next prime is 1130503427. The reversal of 1130503421 is 1243050311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1243050311 = 20411 ⋅60901.

It is a cyclic number.

It is not a de Polignac number, because 1130503421 - 2²² = 1126309117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130503393 and 1130503402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130503427) 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, 208955 + ... + 214296.

It is an arithmetic number, because the mean of its divisors is an integer number (282732336).

Almost surely, 2^1130503421 is an apocalyptic number.

It is an amenable number.

1130503421 is a deficient number, since it is larger than the sum of its proper divisors (425923).

1130503421 is an equidigital number, since it uses as much as digits as its factorization.

1130503421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425922.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1130503421 is about 33622.9597299226. The cubic root of 1130503421 is about 1041.7350908809.

Adding to 1130503421 its reverse (1243050311), we get a palindrome (2373553732).

The spelling of 1130503421 in words is "one billion, one hundred thirty million, five hundred three thousand, four hundred twenty-one".