231510412241 has 24 divisors (see below), whose sum is σ = 246536093160. Its totient is φ = 217358608896.

The previous prime is 231510412223. The next prime is 231510412249. The reversal of 231510412241 is 142214015132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73202713600 + 158307698641 = 270560^2 + 397879^2 .

It is a de Polignac number, because none of the positive numbers 2^k-231510412241 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 231510412241.

It is not an unprimeable number, because it can be changed into a prime (231510412249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22495625 + ... + 22505913.

It is an arithmetic number, because the mean of its divisors is an integer number (10272337215).

Almost surely, 2^231510412241 is an apocalyptic number.

It is an amenable number.

231510412241 is a deficient number, since it is larger than the sum of its proper divisors (15025680919).

231510412241 is a wasteful number, since it uses less digits than its factorization.

231510412241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10881 (or 10862 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 231510412241 its reverse (142214015132), we get a palindrome (373724427373).

The spelling of 231510412241 in words is "two hundred thirty-one billion, five hundred ten million, four hundred twelve thousand, two hundred forty-one".