1321400333 has 8 divisors (see below), whose sum is σ = 1441825920. Its totient is φ = 1201024480.

The previous prime is 1321400323. The next prime is 1321400401. The reversal of 1321400333 is 3330041231.

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 1321400333 - 2¹⁴ = 1321383949 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 (1321400323) 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, 63116 + ... + 81402.

It is an arithmetic number, because the mean of its divisors is an integer number (180228240).

Almost surely, 2^1321400333 is an apocalyptic number.

It is an amenable number.

1321400333 is a deficient number, since it is larger than the sum of its proper divisors (120425587).

1321400333 is a wasteful number, since it uses less digits than its factorization.

1321400333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24867.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1321400333 is about 36351.0705894613. The cubic root of 1321400333 is about 1097.3490802451.

Adding to 1321400333 its reverse (3330041231), we get a palindrome (4651441564).

The spelling of 1321400333 in words is "one billion, three hundred twenty-one million, four hundred thousand, three hundred thirty-three".