2031303312 has 80 divisors (see below), whose sum is σ = 5846292480. Its totient is φ = 675278208.

The previous prime is 2031303283. The next prime is 2031303317. The reversal of 2031303312 is 2133031302.

2031303312 is a `hidden beast` number, since 20 + 31 + 303 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2031303317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159318 + ... + 171594.

It is an arithmetic number, because the mean of its divisors is an integer number (73078656).

Almost surely, 2^2031303312 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 2031303312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2923146240).

2031303312 is an abundant number, since it is smaller than the sum of its proper divisors (3814989168).

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

2031303312 is a wasteful number, since it uses less digits than its factorization.

2031303312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12677 (or 12665 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2031303312 is about 45069.9823829564. The cubic root of 2031303312 is about 1266.4603343817.

Adding to 2031303312 its reverse (2133031302), we get a palindrome (4164334614).

The spelling of 2031303312 in words is "two billion, thirty-one million, three hundred three thousand, three hundred twelve".