2321031996 has 72 divisors (see below), whose sum is σ = 6092369920. Its totient is φ = 772658352.

The previous prime is 2321031989. The next prime is 2321032013. The reversal of 2321031996 is 6991301232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2321031996.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1242255 + ... + 1244121.

Almost surely, 2^2321031996 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 2321031996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3046184960).

2321031996 is an abundant number, since it is smaller than the sum of its proper divisors (3771337924).

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

2321031996 is a wasteful number, since it uses less digits than its factorization.

2321031996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165 (or 3151 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 2321031996 is about 48177.0899494770. The cubic root of 2321031996 is about 1324.0174504748.

The spelling of 2321031996 in words is "two billion, three hundred twenty-one million, thirty-one thousand, nine hundred ninety-six".