1002203000121 has 16 divisors (see below), whose sum is σ = 1338453708480. Its totient is φ = 667044705600.

The previous prime is 1002203000047. The next prime is 1002203000131. The reversal of 1002203000121 is 1210003022001.

It is not a de Polignac number, because 1002203000121 - 2²³ = 1002194611513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002203000097 and 1002203000106.

It is not an unprimeable number, because it can be changed into a prime (1002203000131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4428795 + ... + 4649583.

It is an arithmetic number, because the mean of its divisors is an integer number (83653356780).

Almost surely, 2^{1002203000121} is an apocalyptic number.

It is an amenable number.

1002203000121 is a deficient number, since it is larger than the sum of its proper divisors (336250708359).

1002203000121 is a wasteful number, since it uses less digits than its factorization.

1002203000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223256.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1002203000121 its reverse (1210003022001), we get a palindrome (2212206022122).

The spelling of 1002203000121 in words is "one trillion, two billion, two hundred three million, one hundred twenty-one", and thus it is an aban number.