201321303312 has 160 divisors (see below), whose sum is σ = 550873313280. Its totient is φ = 63225676800.

The previous prime is 201321303301. The next prime is 201321303347. The reversal of 201321303312 is 213303123102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39855187 + ... + 39860237.

It is an arithmetic number, because the mean of its divisors is an integer number (3442958208).

Almost surely, 2^201321303312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201321303312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275436656640).

201321303312 is an abundant number, since it is smaller than the sum of its proper divisors (349552009968).

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

201321303312 is a wasteful number, since it uses less digits than its factorization.

201321303312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621 (or 5615 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 201321303312 its reverse (213303123102), we get a palindrome (414624426414).

The spelling of 201321303312 in words is "two hundred one billion, three hundred twenty-one million, three hundred three thousand, three hundred twelve".