210404234231 has 4 divisors (see below), whose sum is σ = 215536044864. Its totient is φ = 205272423600.

The previous prime is 210404234207. The next prime is 210404234251. The reversal of 210404234231 is 132432404012.

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

It is a cyclic number.

It is not a de Polignac number, because 210404234231 - 2⁶ = 210404234167 is a prime.

It is a super-2 number, since 2×210404234231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210404234231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210404234251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565905255 + ... + 2565905336.

It is an arithmetic number, because the mean of its divisors is an integer number (53884011216).

Almost surely, 2^210404234231 is an apocalyptic number.

210404234231 is a deficient number, since it is larger than the sum of its proper divisors (5131810633).

210404234231 is an equidigital number, since it uses as much as digits as its factorization.

210404234231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131810632.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 210404234231 its reverse (132432404012), we get a palindrome (342836638243).

The spelling of 210404234231 in words is "two hundred ten billion, four hundred four million, two hundred thirty-four thousand, two hundred thirty-one".