1243232012 has 48 divisors (see below), whose sum is σ = 2441263104. Its totient is φ = 549072000.

The previous prime is 1243232009. The next prime is 1243232027. The reversal of 1243232012 is 2102323421.

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 15 ways as a sum of consecutive naturals, for example, 487613 + ... + 490155.

It is an arithmetic number, because the mean of its divisors is an integer number (50859648).

Almost surely, 2^1243232012 is an apocalyptic number.

It is an amenable number.

1243232012 is a deficient number, since it is larger than the sum of its proper divisors (1198031092).

1243232012 is a wasteful number, since it uses less digits than its factorization.

1243232012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1243232012 is about 35259.4953452258. The cubic root of 1243232012 is about 1075.2696671951.

Adding to 1243232012 its reverse (2102323421), we get a palindrome (3345555433).

It can be divided in two parts, 12432 and 32012, that added together give a palindrome (44444).

The spelling of 1243232012 in words is "one billion, two hundred forty-three million, two hundred thirty-two thousand, twelve".