1022043321 has 12 divisors (see below), whose sum is σ = 1589845348. Its totient is φ = 628949664.

The previous prime is 1022043293. The next prime is 1022043329. The reversal of 1022043321 is 1233402201.

1022043321 is a `hidden beast` number, since 10 + 220 + 433 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 322705296 + 699338025 = 17964^2 + 26445^2 .

It is not a de Polignac number, because 1022043321 - 2⁶ = 1022043257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022043294 and 1022043303.

It is not an unprimeable number, because it can be changed into a prime (1022043329) 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 11 ways as a sum of consecutive naturals, for example, 4367590 + ... + 4367823.

Almost surely, 2^1022043321 is an apocalyptic number.

It is an amenable number.

1022043321 is a deficient number, since it is larger than the sum of its proper divisors (567802027).

1022043321 is a wasteful number, since it uses less digits than its factorization.

1022043321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8735432 (or 8735429 counting only the distinct ones).

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

The square root of 1022043321 is about 31969.4122717325. The cubic root of 1022043321 is about 1007.2944355014.

Adding to 1022043321 its reverse (1233402201), we get a palindrome (2255445522).

The spelling of 1022043321 in words is "one billion, twenty-two million, forty-three thousand, three hundred twenty-one".