213311312001 has 16 divisors (see below), whose sum is σ = 316036921920. Its totient is φ = 142198467840.

The previous prime is 213311311979. The next prime is 213311312003. The reversal of 213311312001 is 100213113312.

213311312001 is a `hidden beast` number, since 2 + 1 + 331 + 131 + 200 + 1 = 666.

It is not a de Polignac number, because 213311312001 - 2³⁰ = 212237570177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213311312003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193266 + ... + 681156.

It is an arithmetic number, because the mean of its divisors is an integer number (19752307620).

Almost surely, 2^213311312001 is an apocalyptic number.

It is an amenable number.

213311312001 is a deficient number, since it is larger than the sum of its proper divisors (102725609919).

213311312001 is a wasteful number, since it uses less digits than its factorization.

213311312001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504093 (or 504087 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 213311312001 its reverse (100213113312), we get a palindrome (313524425313).

The spelling of 213311312001 in words is "two hundred thirteen billion, three hundred eleven million, three hundred twelve thousand, one".