2103210012 has 48 divisors (see below), whose sum is σ = 5200826400. Its totient is φ = 659238912.

The previous prime is 2103209989. The next prime is 2103210013. The reversal of 2103210012 is 2100123012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2103210012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103210013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260614 + ... + 268562.

It is an arithmetic number, because the mean of its divisors is an integer number (108350550).

Almost surely, 2^2103210012 is an apocalyptic number.

It is an amenable number.

2103210012 is an abundant number, since it is smaller than the sum of its proper divisors (3097616388).

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

2103210012 is a wasteful number, since it uses less digits than its factorization.

2103210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9270 (or 9268 counting only the distinct ones).

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

The square root of 2103210012 is about 45860.7676778311. The cubic root of 2103210012 is about 1281.2313208239.

Adding to 2103210012 its reverse (2100123012), we get a palindrome (4203333024).

The spelling of 2103210012 in words is "two billion, one hundred three million, two hundred ten thousand, twelve".