1333421321 has 8 divisors (see below), whose sum is σ = 1378752000. Its totient is φ = 1288235520.

The previous prime is 1333421317. The next prime is 1333421377. The reversal of 1333421321 is 1231243331.

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 1333421321 - 2² = 1333421317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1333421521) 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, 17336 + ... + 54473.

It is an arithmetic number, because the mean of its divisors is an integer number (172344000).

Almost surely, 2^1333421321 is an apocalyptic number.

It is an amenable number.

1333421321 is a deficient number, since it is larger than the sum of its proper divisors (45330679).

1333421321 is an equidigital number, since it uses as much as digits as its factorization.

1333421321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72439.

The product of its digits is 1296, while the sum is 23.

The square root of 1333421321 is about 36516.0419678804. The cubic root of 1333421321 is about 1100.6666265052. Note that the first 4 decimals are identical.

Adding to 1333421321 its reverse (1231243331), we get a palindrome (2564664652).

The spelling of 1333421321 in words is "one billion, three hundred thirty-three million, four hundred twenty-one thousand, three hundred twenty-one".