320120211399 has 4 divisors (see below), whose sum is σ = 426826948536. Its totient is φ = 213413474264.

The previous prime is 320120211349. The next prime is 320120211409. The reversal of 320120211399 is 993112021023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320120211399 - 2³² = 315825244103 is a prime.

It is a super-2 number, since 2×320120211399² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320120211349) 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 3 ways as a sum of consecutive naturals, for example, 53353368564 + ... + 53353368569.

It is an arithmetic number, because the mean of its divisors is an integer number (106706737134).

Almost surely, 2^320120211399 is an apocalyptic number.

320120211399 is a deficient number, since it is larger than the sum of its proper divisors (106706737137).

320120211399 is a wasteful number, since it uses less digits than its factorization.

320120211399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106706737136.

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 320120211399 in words is "three hundred twenty billion, one hundred twenty million, two hundred eleven thousand, three hundred ninety-nine".