213244224131 has 8 divisors (see below), whose sum is σ = 217274796144. Its totient is φ = 209213915040.

The previous prime is 213244224019. The next prime is 213244224187. The reversal of 213244224131 is 131422442312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213244224131 is a prime.

It is a super-2 number, since 2×213244224131² (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 = 213244224094 and 213244224103.

It is not an unprimeable number, because it can be changed into a prime (213244224931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2532845 + ... + 2615681.

It is an arithmetic number, because the mean of its divisors is an integer number (27159349518).

Almost surely, 2^213244224131 is an apocalyptic number.

213244224131 is a deficient number, since it is larger than the sum of its proper divisors (4030572013).

213244224131 is an equidigital number, since it uses as much as digits as its factorization.

213244224131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131461.

The product of its digits is 9216, while the sum is 29.

Adding to 213244224131 its reverse (131422442312), we get a palindrome (344666666443).

The spelling of 213244224131 in words is "two hundred thirteen billion, two hundred forty-four million, two hundred twenty-four thousand, one hundred thirty-one".