2003102121 has 4 divisors (see below), whose sum is σ = 2670802832. Its totient is φ = 1335401412.

The previous prime is 2003102119. The next prime is 2003102137. The reversal of 2003102121 is 1212013002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2003102121 - 2¹ = 2003102119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003102097 and 2003102106.

It is not an unprimeable number, because it can be changed into a prime (2003102161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333850351 + ... + 333850356.

It is an arithmetic number, because the mean of its divisors is an integer number (667700708).

Almost surely, 2^2003102121 is an apocalyptic number.

It is an amenable number.

2003102121 is a deficient number, since it is larger than the sum of its proper divisors (667700711).

2003102121 is an equidigital number, since it uses as much as digits as its factorization.

2003102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667700710.

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

The square root of 2003102121 is about 44756.0288788002. The cubic root of 2003102121 is about 1260.5721179867.

Adding to 2003102121 its reverse (1212013002), we get a palindrome (3215115123).

The spelling of 2003102121 in words is "two billion, three million, one hundred two thousand, one hundred twenty-one".