15231232241 has 4 divisors (see below), whose sum is σ = 15439879332. Its totient is φ = 15022585152.

The previous prime is 15231232217. The next prime is 15231232243. The reversal of 15231232241 is 14223213251.

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 6244950625 + 8986281616 = 79025^2 + 94796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15231232241 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 15231232241.

It is not an unprimeable number, because it can be changed into a prime (15231232243) 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, 104323436 + ... + 104323581.

It is an arithmetic number, because the mean of its divisors is an integer number (3859969833).

Almost surely, 2^15231232241 is an apocalyptic number.

It is an amenable number.

15231232241 is a deficient number, since it is larger than the sum of its proper divisors (208647091).

15231232241 is an equidigital number, since it uses as much as digits as its factorization.

15231232241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208647090.

The product of its digits is 2880, while the sum is 26.

Adding to 15231232241 its reverse (14223213251), we get a palindrome (29454445492).

The spelling of 15231232241 in words is "fifteen billion, two hundred thirty-one million, two hundred thirty-two thousand, two hundred forty-one".