1023221023 has 4 divisors (see below), whose sum is σ = 1116241128. Its totient is φ = 930200920.

The previous prime is 1023221009. The next prime is 1023221029. The reversal of 1023221023 is 3201223201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1023221023 - 2⁹ = 1023220511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023220988 and 1023221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023221029) 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, 46510036 + ... + 46510057.

It is an arithmetic number, because the mean of its divisors is an integer number (279060282).

Almost surely, 2^1023221023 is an apocalyptic number.

1023221023 is a deficient number, since it is larger than the sum of its proper divisors (93020105).

1023221023 is an equidigital number, since it uses as much as digits as its factorization.

1023221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93020104.

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

The square root of 1023221023 is about 31987.8261687161. The cubic root of 1023221023 is about 1007.6811892664.

Adding to 1023221023 its reverse (3201223201), we get a palindrome (4224444224).

The spelling of 1023221023 in words is "one billion, twenty-three million, two hundred twenty-one thousand, twenty-three".