2123715206 has 8 divisors (see below), whose sum is σ = 3190771344. Its totient is φ = 1060124760.

The previous prime is 2123715169. The next prime is 2123715221. The reversal of 2123715206 is 6025173212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864890 + ... + 867341.

It is an arithmetic number, because the mean of its divisors is an integer number (398846418).

Almost surely, 2^2123715206 is an apocalyptic number.

2123715206 is a deficient number, since it is larger than the sum of its proper divisors (1067056138).

2123715206 is a wasteful number, since it uses less digits than its factorization.

2123715206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732846.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2123715206 is about 46083.7846319071. The cubic root of 2123715206 is about 1285.3816397862.

Adding to 2123715206 its reverse (6025173212), we get a palindrome (8148888418).

The spelling of 2123715206 in words is "two billion, one hundred twenty-three million, seven hundred fifteen thousand, two hundred six".