213012240008 has 16 divisors (see below), whose sum is σ = 409139364060. Its totient is φ = 103908409600.

The previous prime is 213012239987. The next prime is 213012240019. The reversal of 213012240008 is 800042210312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206441192164 + 6571047844 = 454358^2 + 81062^2 .

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, 324713453 + ... + 324714108.

Almost surely, 2^213012240008 is an apocalyptic number.

It is an amenable number.

213012240008 is a deficient number, since it is larger than the sum of its proper divisors (196127124052).

213012240008 is a wasteful number, since it uses less digits than its factorization.

213012240008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649427608 (or 649427604 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The spelling of 213012240008 in words is "two hundred thirteen billion, twelve million, two hundred forty thousand, eight".