213303422131 has 4 divisors (see below), whose sum is σ = 218505944664. Its totient is φ = 208100899600.

The previous prime is 213303422083. The next prime is 213303422173. The reversal of 213303422131 is 131224303312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213303422131 is a prime.

It is a super-2 number, since 2×213303422131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213303422096 and 213303422105.

It is not an unprimeable number, because it can be changed into a prime (213303420131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2601261205 + ... + 2601261286.

It is an arithmetic number, because the mean of its divisors is an integer number (54626486166).

Almost surely, 2^213303422131 is an apocalyptic number.

213303422131 is a deficient number, since it is larger than the sum of its proper divisors (5202522533).

213303422131 is an equidigital number, since it uses as much as digits as its factorization.

213303422131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202522532.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 213303422131 its reverse (131224303312), we get a palindrome (344527725443).

The spelling of 213303422131 in words is "two hundred thirteen billion, three hundred three million, four hundred twenty-two thousand, one hundred thirty-one".