2001312203012 has 48 divisors (see below), whose sum is σ = 3942555265152. Its totient is φ = 883849274880.

The previous prime is 2001312203003. The next prime is 2001312203129. The reversal of 2001312203012 is 2103022131002.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 15 ways as a sum of consecutive naturals, for example, 11988914 + ... + 12154697.

It is an arithmetic number, because the mean of its divisors is an integer number (82136568024).

Almost surely, 2^{2001312203012} is an apocalyptic number.

It is an amenable number.

2001312203012 is a deficient number, since it is larger than the sum of its proper divisors (1941243062140).

2001312203012 is a wasteful number, since it uses less digits than its factorization.

2001312203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24143708 (or 24143706 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2001312203012 its reverse (2103022131002), we get a palindrome (4104334334014).

The spelling of 2001312203012 in words is "two trillion, one billion, three hundred twelve million, two hundred three thousand, twelve".