2012311432 has 64 divisors (see below), whose sum is σ = 4167590400. Its totient is φ = 907200000.

The previous prime is 2012311429. The next prime is 2012311459. The reversal of 2012311432 is 2341132102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283932 + ... + 290932.

It is an arithmetic number, because the mean of its divisors is an integer number (65118600).

Almost surely, 2^2012311432 is an apocalyptic number.

It is an amenable number.

2012311432 is an abundant number, since it is smaller than the sum of its proper divisors (2155278968).

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

2012311432 is a wasteful number, since it uses less digits than its factorization.

2012311432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118 (or 7114 counting only the distinct ones).

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

The square root of 2012311432 is about 44858.7943663224. The cubic root of 2012311432 is about 1262.5010020186.

Adding to 2012311432 its reverse (2341132102), we get a palindrome (4353443534).

The spelling of 2012311432 in words is "two billion, twelve million, three hundred eleven thousand, four hundred thirty-two".