213131132011 has 12 divisors (see below), whose sum is σ = 258707533392. Its totient is φ = 174741051408.

The previous prime is 213131131999. The next prime is 213131132023. The reversal of 213131132011 is 110231131312.

It is an interprime number because it is at equal distance from previous prime (213131131999) and next prime (213131132023).

It is not a de Polignac number, because 213131132011 - 2³⁷ = 75692178539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213131132011.

It is not an unprimeable number, because it can be changed into a prime (213131132041) 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, 94555720 + ... + 94557973.

It is an arithmetic number, because the mean of its divisors is an integer number (21558961116).

Almost surely, 2^213131132011 is an apocalyptic number.

213131132011 is a deficient number, since it is larger than the sum of its proper divisors (45576401381).

213131132011 is a wasteful number, since it uses less digits than its factorization.

213131132011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189113730 (or 189113723 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 213131132011 its reverse (110231131312), we get a palindrome (323362263323).

The spelling of 213131132011 in words is "two hundred thirteen billion, one hundred thirty-one million, one hundred thirty-two thousand, eleven".