1023023321 has 4 divisors (see below), whose sum is σ = 1025033700. Its totient is φ = 1021012944.

The previous prime is 1023023311. The next prime is 1023023333. The reversal of 1023023321 is 1233203201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1233203201 = 1489 ⋅828209.

It can be written as a sum of positive squares in 2 ways, for example, as 786017296 + 237006025 = 28036^2 + 15395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023023321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023023321.

It is not an unprimeable number, because it can be changed into a prime (1023023311) 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 3 ways as a sum of consecutive naturals, for example, 1004426 + ... + 1005443.

It is an arithmetic number, because the mean of its divisors is an integer number (256258425).

Almost surely, 2^1023023321 is an apocalyptic number.

It is an amenable number.

1023023321 is a deficient number, since it is larger than the sum of its proper divisors (2010379).

1023023321 is an equidigital number, since it uses as much as digits as its factorization.

1023023321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010378.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1023023321 is about 31984.7357500418. The cubic root of 1023023321 is about 1007.6162852641.

Adding to 1023023321 its reverse (1233203201), we get a palindrome (2256226522).

The spelling of 1023023321 in words is "one billion, twenty-three million, twenty-three thousand, three hundred twenty-one".