2003012312 has 16 divisors (see below), whose sum is σ = 4292169360. Its totient is φ = 858433824.

The previous prime is 2003012309. The next prime is 2003012351. The reversal of 2003012312 is 2132103002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17883983 + ... + 17884094.

It is an arithmetic number, because the mean of its divisors is an integer number (268260585).

Almost surely, 2^2003012312 is an apocalyptic number.

It is an amenable number.

2003012312 is an abundant number, since it is smaller than the sum of its proper divisors (2289157048).

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

2003012312 is a wasteful number, since it uses less digits than its factorization.

2003012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35768090 (or 35768086 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2003012312 is about 44755.0255502106. The cubic root of 2003012312 is about 1260.5532784724.

Adding to 2003012312 its reverse (2132103002), we get a palindrome (4135115314).

The spelling of 2003012312 in words is "two billion, three million, twelve thousand, three hundred twelve".