2103002010021 has 48 divisors (see below), whose sum is σ = 3114958747712. Its totient is φ = 1260961827840.

The previous prime is 2103002009959. The next prime is 2103002010119. The reversal of 2103002010021 is 1200102003012.

It is not a de Polignac number, because 2103002010021 - 2⁷ = 2103002009893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2103002009979 and 2103002010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103002080021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118757850 + ... + 118775556.

Almost surely, 2^{2103002010021} is an apocalyptic number.

It is an amenable number.

2103002010021 is a deficient number, since it is larger than the sum of its proper divisors (1011956737691).

2103002010021 is a wasteful number, since it uses less digits than its factorization.

2103002010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21202 (or 21191 counting only the distinct ones).

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

Adding to 2103002010021 its reverse (1200102003012), we get a palindrome (3303104013033).

The spelling of 2103002010021 in words is "two trillion, one hundred three billion, two million, ten thousand, twenty-one".