12301022231 has 4 divisors (see below), whose sum is σ = 13024611792. Its totient is φ = 11577432672.

The previous prime is 12301022213. The next prime is 12301022233. The reversal of 12301022231 is 13222010321.

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 12301022231 - 2²² = 12296827927 is a prime.

It is a super-2 number, since 2×12301022231² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 723589543 = 12301022231 / (1 + 2 + 3 + 0 + 1 + 0 + 2 + 2 + 2 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301022233) 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, 361794755 + ... + 361794788.

It is an arithmetic number, because the mean of its divisors is an integer number (3256152948).

Almost surely, 2^12301022231 is an apocalyptic number.

12301022231 is a deficient number, since it is larger than the sum of its proper divisors (723589561).

12301022231 is an equidigital number, since it uses as much as digits as its factorization.

12301022231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723589560.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12301022231 its reverse (13222010321), we get a palindrome (25523032552).

The spelling of 12301022231 in words is "twelve billion, three hundred one million, twenty-two thousand, two hundred thirty-one".