1030456221 has 4 divisors (see below), whose sum is σ = 1373941632. Its totient is φ = 686970812.

The previous prime is 1030456201. The next prime is 1030456223. The reversal of 1030456221 is 1226540301.

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 1030456221 - 2¹⁵ = 1030423453 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1030456191 and 1030456200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030456223) 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, 171742701 + ... + 171742706.

It is an arithmetic number, because the mean of its divisors is an integer number (343485408).

Almost surely, 2^1030456221 is an apocalyptic number.

It is an amenable number.

1030456221 is a deficient number, since it is larger than the sum of its proper divisors (343485411).

1030456221 is an equidigital number, since it uses as much as digits as its factorization.

1030456221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343485410.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1030456221 is about 32100.7199451975. The cubic root of 1030456221 is about 1010.0507182974.

Adding to 1030456221 its reverse (1226540301), we get a palindrome (2256996522).

The spelling of 1030456221 in words is "one billion, thirty million, four hundred fifty-six thousand, two hundred twenty-one".