2100003210 has 48 divisors (see below), whose sum is σ = 5536926720. Its totient is φ = 552111840.

The previous prime is 2100003197. The next prime is 2100003221. The reversal of 2100003210 is 123000012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2100003192 and 2100003201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157930 + ... + 170709.

It is an arithmetic number, because the mean of its divisors is an integer number (115352640).

Almost surely, 2^2100003210 is an apocalyptic number.

2100003210 is an abundant number, since it is smaller than the sum of its proper divisors (3436923510).

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

2100003210 is a wasteful number, since it uses less digits than its factorization.

2100003210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328723 (or 328720 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2100003210 is about 45825.7919735164. The cubic root of 2100003210 is about 1280.5798174727.

Adding to 2100003210 its reverse (123000012), we get a palindrome (2223003222).

The spelling of 2100003210 in words is "two billion, one hundred million, three thousand, two hundred ten".