1034320221 has 18 divisors (see below), whose sum is σ = 1642186910. Its totient is φ = 626860080.

The previous prime is 1034320213. The next prime is 1034320229. The reversal of 1034320221 is 1220234301.

1034320221 is a `hidden beast` number, since 10 + 3 + 432 + 0 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (1034320213) and next prime (1034320229).

It can be written as a sum of positive squares in only one way, i.e., 915728121 + 118592100 = 30261^2 + 10890^2 .

It is not a de Polignac number, because 1034320221 - 2³ = 1034320213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1034320194 and 1034320203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034320229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 473806 + ... + 475983.

Almost surely, 2^1034320221 is an apocalyptic number.

1034320221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1034320221 is a deficient number, since it is larger than the sum of its proper divisors (607866689).

1034320221 is a wasteful number, since it uses less digits than its factorization.

1034320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949817 (or 949803 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1034320221 is about 32160.8491958779. The cubic root of 1034320221 is about 1011.3116380579.

Adding to 1034320221 its reverse (1220234301), we get a palindrome (2254554522).

The spelling of 1034320221 in words is "one billion, thirty-four million, three hundred twenty thousand, two hundred twenty-one".