1321224023 has 8 divisors (see below), whose sum is σ = 1513739040. Its totient is φ = 1129651200.

The previous prime is 1321223929. The next prime is 1321224031. The reversal of 1321224023 is 3204221231.

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 1321224023 - 2¹² = 1321219927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321223986 and 1321224004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321224623) 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, 232538 + ... + 238151.

It is an arithmetic number, because the mean of its divisors is an integer number (189217380).

Almost surely, 2^1321224023 is an apocalyptic number.

1321224023 is a deficient number, since it is larger than the sum of its proper divisors (192515017).

1321224023 is an equidigital number, since it uses as much as digits as its factorization.

1321224023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471097.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1321224023 is about 36348.6454080479. The cubic root of 1321224023 is about 1097.3002728759.

Adding to 1321224023 its reverse (3204221231), we get a palindrome (4525445254).

The spelling of 1321224023 in words is "one billion, three hundred twenty-one million, two hundred twenty-four thousand, twenty-three".