213106180431 has 8 divisors (see below), whose sum is σ = 284144796720. Its totient is φ = 142069175552.

The previous prime is 213106180411. The next prime is 213106180433. The reversal of 213106180431 is 134081601312.

213106180431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 213106180431 - 2³³ = 204516245839 is a prime.

It is a super-2 number, since 2×213106180431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213106180433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50160 + ... + 654773.

It is an arithmetic number, because the mean of its divisors is an integer number (35518099590).

Almost surely, 2^213106180431 is an apocalyptic number.

213106180431 is a deficient number, since it is larger than the sum of its proper divisors (71038616289).

213106180431 is a wasteful number, since it uses less digits than its factorization.

213106180431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805705.

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 213106180431 its reverse (134081601312), we get a palindrome (347187781743).

The spelling of 213106180431 in words is "two hundred thirteen billion, one hundred six million, one hundred eighty thousand, four hundred thirty-one".