320121212021133 has 16 divisors (see below), whose sum is σ = 428468284785600. Its totient is φ = 212594569523840.

The previous prime is 320121212021071. The next prime is 320121212021159. The reversal of 320121212021133 is 331120212121023.

It is a cyclic number.

It is not a de Polignac number, because 320121212021133 - 2¹⁸ = 320121211758989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320121212022133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50667438 + ... + 56634191.

It is an arithmetic number, because the mean of its divisors is an integer number (26779267799100).

Almost surely, 2^{320121212021133} is an apocalyptic number.

It is an amenable number.

320121212021133 is a deficient number, since it is larger than the sum of its proper divisors (108347072764467).

320121212021133 is a wasteful number, since it uses less digits than its factorization.

320121212021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107305452.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 320121212021133 its reverse (331120212121023), we get a palindrome (651241424142156).

The spelling of 320121212021133 in words is "three hundred twenty trillion, one hundred twenty-one billion, two hundred twelve million, twenty-one thousand, one hundred thirty-three".