201320112321 has 6 divisors (see below), whose sum is σ = 290795717810. Its totient is φ = 134213408208.

The previous prime is 201320112317. The next prime is 201320112341. The reversal of 201320112321 is 123211023102.

201320112321 is a `hidden beast` number, since 20 + 1 + 320 + 1 + 1 + 2 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 188734638096 + 12585474225 = 434436^2 + 112185^2 .

It is not a de Polignac number, because 201320112321 - 2² = 201320112317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201320112294 and 201320112303.

It is not an unprimeable number, because it can be changed into a prime (201320112341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11184450676 + ... + 11184450693.

Almost surely, 2^201320112321 is an apocalyptic number.

It is an amenable number.

201320112321 is a deficient number, since it is larger than the sum of its proper divisors (89475605489).

201320112321 is a wasteful number, since it uses less digits than its factorization.

201320112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22368901375 (or 22368901372 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201320112321 its reverse (123211023102), we get a palindrome (324531135423).

The spelling of 201320112321 in words is "two hundred one billion, three hundred twenty million, one hundred twelve thousand, three hundred twenty-one".