213094699521 has 16 divisors (see below), whose sum is σ = 309982982400. Its totient is φ = 129137029520.

The previous prime is 213094699507. The next prime is 213094699549. The reversal of 213094699521 is 125996490312.

It is a cyclic number.

It is not a de Polignac number, because 213094699521 - 2⁷ = 213094699393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213094699561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110086 + ... + 662048.

It is an arithmetic number, because the mean of its divisors is an integer number (19373936400).

Almost surely, 2^213094699521 is an apocalyptic number.

It is an amenable number.

213094699521 is a deficient number, since it is larger than the sum of its proper divisors (96888282879).

213094699521 is a wasteful number, since it uses less digits than its factorization.

213094699521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563676.

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 213094699521 in words is "two hundred thirteen billion, ninety-four million, six hundred ninety-nine thousand, five hundred twenty-one".