213308346881 has 12 divisors (see below), whose sum is σ = 261193895280. Its totient is φ = 173212792200.

The previous prime is 213308346871. The next prime is 213308346893. The reversal of 213308346881 is 188643803312.

It is not a de Polignac number, because 213308346881 - 2²⁶ = 213241238017 is a prime.

It is a super-2 number, since 2×213308346881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213308346851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114557795 + ... + 114559656.

It is an arithmetic number, because the mean of its divisors is an integer number (21766157940).

Almost surely, 2^213308346881 is an apocalyptic number.

It is an amenable number.

213308346881 is a deficient number, since it is larger than the sum of its proper divisors (47885548399).

213308346881 is a wasteful number, since it uses less digits than its factorization.

213308346881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229117484 (or 229117477 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 213308346881 in words is "two hundred thirteen billion, three hundred eight million, three hundred forty-six thousand, eight hundred eighty-one".