2012032321 has 4 divisors (see below), whose sum is σ = 2166804052. Its totient is φ = 1857260592.

The previous prime is 2012032301. The next prime is 2012032327. The reversal of 2012032321 is 1232302102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1186044721 + 825987600 = 34439^2 + 28740^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012032321 - 2⁵ = 2012032289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012032295 and 2012032304.

It is not an unprimeable number, because it can be changed into a prime (2012032327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77385846 + ... + 77385871.

It is an arithmetic number, because the mean of its divisors is an integer number (541701013).

Almost surely, 2^2012032321 is an apocalyptic number.

It is an amenable number.

2012032321 is a deficient number, since it is larger than the sum of its proper divisors (154771731).

2012032321 is a wasteful number, since it uses less digits than its factorization.

2012032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154771730.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2012032321 is about 44855.6832631050. The cubic root of 2012032321 is about 1262.4426289781.

Adding to 2012032321 its reverse (1232302102), we get a palindrome (3244334423).

It can be divided in two parts, 20120 and 32321, that added together give a square (52441 = 229²).

The spelling of 2012032321 in words is "two billion, twelve million, thirty-two thousand, three hundred twenty-one".