1200023321 has 8 divisors (see below), whose sum is σ = 1431083904. Its totient is φ = 983869920.

The previous prime is 1200023291. The next prime is 1200023371. The reversal of 1200023321 is 1233200021.

It is a happy number.

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 1200023321 - 2¹⁴ = 1200006937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200023296 and 1200023305.

It is not an unprimeable number, because it can be changed into a prime (1200023371) 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, 3726620 + ... + 3726941.

It is an arithmetic number, because the mean of its divisors is an integer number (178885488).

Almost surely, 2^1200023321 is an apocalyptic number.

It is an amenable number.

1200023321 is a deficient number, since it is larger than the sum of its proper divisors (231060583).

1200023321 is an equidigital number, since it uses as much as digits as its factorization.

1200023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7453591.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1200023321 is about 34641.3527593828. The cubic root of 1200023321 is about 1062.6654530993.

Adding to 1200023321 its reverse (1233200021), we get a palindrome (2433223342).

The spelling of 1200023321 in words is "one billion, two hundred million, twenty-three thousand, three hundred twenty-one".