2003121102012 has 24 divisors (see below), whose sum is σ = 4674002874576. Its totient is φ = 667699371648.

The previous prime is 2003121102001. The next prime is 2003121102013. The reversal of 2003121102012 is 2102011213002.

It is a junction number, because it is equal to n+sod(n) for n = 2003121101982 and 2003121102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003121102013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186118 + ... + 2010194.

It is an arithmetic number, because the mean of its divisors is an integer number (194750119774).

Almost surely, 2^{2003121102012} is an apocalyptic number.

It is an amenable number.

2003121102012 is an abundant number, since it is smaller than the sum of its proper divisors (2670881772564).

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

2003121102012 is a wasteful number, since it uses less digits than its factorization.

2003121102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915597 (or 1915595 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2003121102012 its reverse (2102011213002), we get a palindrome (4105132315014).

The spelling of 2003121102012 in words is "two trillion, three billion, one hundred twenty-one million, one hundred two thousand, twelve".