320000213201 has 4 divisors (see below), whose sum is σ = 338823755172. Its totient is φ = 301176671232.

The previous prime is 320000213191. The next prime is 320000213231. The reversal of 320000213201 is 102312000023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102312000023 = 278891 ⋅366853.

It can be written as a sum of positive squares in 2 ways, for example, as 286208950225 + 33791262976 = 534985^2 + 183824^2 .

It is a cyclic number.

It is not a de Polignac number, because 320000213201 - 2²² = 319996018897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320000213231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9411770960 + ... + 9411770993.

It is an arithmetic number, because the mean of its divisors is an integer number (84705938793).

Almost surely, 2^320000213201 is an apocalyptic number.

It is an amenable number.

320000213201 is a deficient number, since it is larger than the sum of its proper divisors (18823541971).

320000213201 is a wasteful number, since it uses less digits than its factorization.

320000213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18823541970.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 320000213201 its reverse (102312000023), we get a palindrome (422312213224).

The spelling of 320000213201 in words is "three hundred twenty billion, two hundred thirteen thousand, two hundred one".