2123210346 has 16 divisors (see below), whose sum is σ = 4285380000. Its totient is φ = 701243568.

The previous prime is 2123210279. The next prime is 2123210371. The reversal of 2123210346 is 6430123212.

It is a super-2 number, since 2×2123210346² = 9016044346722879432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622596 + ... + 1623903.

It is an arithmetic number, because the mean of its divisors is an integer number (267836250).

Almost surely, 2^2123210346 is an apocalyptic number.

2123210346 is an abundant number, since it is smaller than the sum of its proper divisors (2162169654).

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

2123210346 is a wasteful number, since it uses less digits than its factorization.

2123210346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246613.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2123210346 is about 46078.3066746164. The cubic root of 2123210346 is about 1285.2797759703.

Adding to 2123210346 its reverse (6430123212), we get a palindrome (8553333558).

The spelling of 2123210346 in words is "two billion, one hundred twenty-three million, two hundred ten thousand, three hundred forty-six".