201312320 has 56 divisors (see below), whose sum is σ = 522963648. Its totient is φ = 73203200.

The previous prime is 201312299. The next prime is 201312341. The reversal of 201312320 is 23213102.

It is a happy number.

201312320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201312299) and next prime (201312341).

It is a junction number, because it is equal to n+sod(n) for n = 201312295 and 201312304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25076 + ... + 32115.

Almost surely, 2^201312320 is an apocalyptic number.

201312320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201312320 is an abundant number, since it is smaller than the sum of its proper divisors (321651328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201312320 is a wasteful number, since it uses less digits than its factorization.

201312320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57219 (or 57209 counting only the distinct ones).

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

The square root of 201312320 is about 14188.4572804798. The cubic root of 201312320 is about 586.0798425069.

Adding to 201312320 its reverse (23213102), we get a palindrome (224525422).

The spelling of 201312320 in words is "two hundred one million, three hundred twelve thousand, three hundred twenty".