2031320032 has 24 divisors (see below), whose sum is σ = 4570470576. Its totient is φ = 870565632.

The previous prime is 2031320023. The next prime is 2031320099. The reversal of 2031320032 is 2300231302.

It is a super-2 number, since 2×2031320032² = 8252522144808962048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2031319988 and 2031320015.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4533973 + ... + 4534420.

It is an arithmetic number, because the mean of its divisors is an integer number (190436274).

Almost surely, 2^2031320032 is an apocalyptic number.

It is an amenable number.

2031320032 is an abundant number, since it is smaller than the sum of its proper divisors (2539150544).

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

2031320032 is an equidigital number, since it uses as much as digits as its factorization.

2031320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9068410 (or 9068402 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2031320032 is about 45070.1678718862. The cubic root of 2031320032 is about 1266.4638091883.

Adding to 2031320032 its reverse (2300231302), we get a palindrome (4331551334).

The spelling of 2031320032 in words is "two billion, thirty-one million, three hundred twenty thousand, thirty-two".