213113002002131 has 12 divisors (see below), whose sum is σ = 270443958014520. Its totient is φ = 166062079481760.

The previous prime is 213113002002097. The next prime is 213113002002193. The reversal of 213113002002131 is 131200200311312.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-213113002002131 is a prime.

It is a super-2 number, since 2×213113002002131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213113002002631) 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, 197692951226 + ... + 197692952303.

It is an arithmetic number, because the mean of its divisors is an integer number (22536996501210).

Almost surely, 2^{213113002002131} is an apocalyptic number.

213113002002131 is a deficient number, since it is larger than the sum of its proper divisors (57330956012389).

213113002002131 is a wasteful number, since it uses less digits than its factorization.

213113002002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395385903554 (or 395385903547 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213113002002131 its reverse (131200200311312), we get a palindrome (344313202313443).

The spelling of 213113002002131 in words is "two hundred thirteen trillion, one hundred thirteen billion, two million, two thousand, one hundred thirty-one".