320112121020321 has 16 divisors (see below), whose sum is σ = 487806714748800. Its totient is φ = 182914905992448.

The previous prime is 320112121020319. The next prime is 320112121020331. The reversal of 320112121020321 is 123020121211023.

It is not a de Polignac number, because 320112121020321 - 2¹ = 320112121020319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (320112121020301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262127106 + ... + 263345483.

It is an arithmetic number, because the mean of its divisors is an integer number (30487919671800).

Almost surely, 2^{320112121020321} is an apocalyptic number.

It is an amenable number.

320112121020321 is a deficient number, since it is larger than the sum of its proper divisors (167694593728479).

320112121020321 is a wasteful number, since it uses less digits than its factorization.

320112121020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525501608.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 320112121020321 its reverse (123020121211023), we get a palindrome (443132242231344).

The spelling of 320112121020321 in words is "three hundred twenty trillion, one hundred twelve billion, one hundred twenty-one million, twenty thousand, three hundred twenty-one".