231244211141 has 4 divisors (see below), whose sum is σ = 231650616300. Its totient is φ = 230837805984.

The previous prime is 231244211129. The next prime is 231244211189. The reversal of 231244211141 is 141112442132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90953512225 + 140290698916 = 301585^2 + 374554^2 .

It is a cyclic number.

It is not a de Polignac number, because 231244211141 - 2¹⁴ = 231244194757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231244211141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231244211741) 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, 203201726 + ... + 203202863.

It is an arithmetic number, because the mean of its divisors is an integer number (57912654075).

Almost surely, 2^231244211141 is an apocalyptic number.

It is an amenable number.

231244211141 is a deficient number, since it is larger than the sum of its proper divisors (406405159).

231244211141 is an equidigital number, since it uses as much as digits as its factorization.

231244211141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406405158.

The product of its digits is 1536, while the sum is 26.

Adding to 231244211141 its reverse (141112442132), we get a palindrome (372356653273).

The spelling of 231244211141 in words is "two hundred thirty-one billion, two hundred forty-four million, two hundred eleven thousand, one hundred forty-one".