1321232023 has 8 divisors (see below), whose sum is σ = 1330630560. Its totient is φ = 1311851520.

The previous prime is 1321232009. The next prime is 1321232039. The reversal of 1321232023 is 3202321231.

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 1321232023 - 2¹³ = 1321223831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321232063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164583 + ... + 172423.

It is an arithmetic number, because the mean of its divisors is an integer number (166328820).

Almost surely, 2^1321232023 is an apocalyptic number.

1321232023 is a deficient number, since it is larger than the sum of its proper divisors (9398537).

1321232023 is a wasteful number, since it uses less digits than its factorization.

1321232023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9017.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1321232023 is about 36348.7554532476. The cubic root of 1321232023 is about 1097.3024875860.

Adding to 1321232023 its reverse (3202321231), we get a palindrome (4523553254).

The spelling of 1321232023 in words is "one billion, three hundred twenty-one million, two hundred thirty-two thousand, twenty-three".