2031320370 has 64 divisors (see below), whose sum is σ = 5051185920. Its totient is φ = 522187008.

The previous prime is 2031320351. The next prime is 2031320407. The reversal of 2031320370 is 730231302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 714592 + ... + 717428.

It is an arithmetic number, because the mean of its divisors is an integer number (78924780).

Almost surely, 2^2031320370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031320370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2525592960).

2031320370 is an abundant number, since it is smaller than the sum of its proper divisors (3019865550).

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

2031320370 is a wasteful number, since it uses less digits than its factorization.

2031320370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 2031320370 is about 45070.1716215947. The cubic root of 2031320370 is about 1266.4638794324.

Adding to 2031320370 its reverse (730231302), we get a palindrome (2761551672).

The spelling of 2031320370 in words is "two billion, thirty-one million, three hundred twenty thousand, three hundred seventy".