1020221323 has 8 divisors (see below), whose sum is σ = 1178437680. Its totient is φ = 872916480.

The previous prime is 1020221299. The next prime is 1020221347. The reversal of 1020221323 is 3231220201.

It is an interprime number because it is at equal distance from previous prime (1020221299) and next prime (1020221347).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020221323 - 2²⁹ = 483350411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020221297 and 1020221306.

It is not an unprimeable number, because it can be changed into a prime (1020221123) 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 7 ways as a sum of consecutive naturals, for example, 2727678 + ... + 2728051.

It is an arithmetic number, because the mean of its divisors is an integer number (147304710).

Almost surely, 2^1020221323 is an apocalyptic number.

1020221323 is a deficient number, since it is larger than the sum of its proper divisors (158216357).

1020221323 is a wasteful number, since it uses less digits than its factorization.

1020221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455757.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1020221323 is about 31940.9036033735. The cubic root of 1020221323 is about 1006.6955110784.

Adding to 1020221323 its reverse (3231220201), we get a palindrome (4251441524).

The spelling of 1020221323 in words is "one billion, twenty million, two hundred twenty-one thousand, three hundred twenty-three".