2003121020012 has 48 divisors (see below), whose sum is σ = 4244033747520. Its totient is φ = 807575795712.

The previous prime is 2003121019993. The next prime is 2003121020027. The reversal of 2003121020012 is 2100201213002.

It is a happy number.

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

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, 107087 + ... + 2004422.

It is an arithmetic number, because the mean of its divisors is an integer number (88417369740).

Almost surely, 2^{2003121020012} is an apocalyptic number.

It is an amenable number.

2003121020012 is an abundant number, since it is smaller than the sum of its proper divisors (2240912727508).

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

2003121020012 is a wasteful number, since it uses less digits than its factorization.

2003121020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113530 (or 2113528 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2003121020012 its reverse (2100201213002), we get a palindrome (4103322233014).

The spelling of 2003121020012 in words is "two trillion, three billion, one hundred twenty-one million, twenty thousand, twelve".