2012431321 has 8 divisors (see below), whose sum is σ = 2131557120. Its totient is φ = 1893388608.

The previous prime is 2012431271. The next prime is 2012431327. The reversal of 2012431321 is 1231342102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012431321 - 2⁷ = 2012431193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012431327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33120 + ... + 71566.

It is an arithmetic number, because the mean of its divisors is an integer number (266444640).

Almost surely, 2^2012431321 is an apocalyptic number.

It is an amenable number.

2012431321 is a deficient number, since it is larger than the sum of its proper divisors (119125799).

2012431321 is a wasteful number, since it uses less digits than its factorization.

2012431321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41543.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2012431321 is about 44860.1306395779. The cubic root of 2012431321 is about 1262.5260738464.

Adding to 2012431321 its reverse (1231342102), we get a palindrome (3243773423).

The spelling of 2012431321 in words is "two billion, twelve million, four hundred thirty-one thousand, three hundred twenty-one".