12302111231 has 4 divisors (see below), whose sum is σ = 12305661000. Its totient is φ = 12298561464.

The previous prime is 12302111191. The next prime is 12302111249. The reversal of 12302111231 is 13211120321.

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 12302111231 - 2¹⁰ = 12302110207 is a prime.

It is a super-2 number, since 2×12302111231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302111281) 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, 1769681 + ... + 1776618.

It is an arithmetic number, because the mean of its divisors is an integer number (3076415250).

Almost surely, 2^12302111231 is an apocalyptic number.

12302111231 is a deficient number, since it is larger than the sum of its proper divisors (3549769).

12302111231 is an equidigital number, since it uses as much as digits as its factorization.

12302111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549768.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12302111231 its reverse (13211120321), we get a palindrome (25513231552).

The spelling of 12302111231 in words is "twelve billion, three hundred two million, one hundred eleven thousand, two hundred thirty-one".