12102301231 has 4 divisors (see below), whose sum is σ = 12154242672. Its totient is φ = 12050359792.

The previous prime is 12102301217. The next prime is 12102301291. The reversal of 12102301231 is 13210320121.

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 12102301231 - 2²¹ = 12100204079 is a prime.

It is a super-2 number, since 2×12102301231² (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 (12102301291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25970371 + ... + 25970836.

It is an arithmetic number, because the mean of its divisors is an integer number (3038560668).

Almost surely, 2^12102301231 is an apocalyptic number.

12102301231 is a deficient number, since it is larger than the sum of its proper divisors (51941441).

12102301231 is an equidigital number, since it uses as much as digits as its factorization.

12102301231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51941440.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12102301231 its reverse (13210320121), we get a palindrome (25312621352).

The spelling of 12102301231 in words is "twelve billion, one hundred two million, three hundred one thousand, two hundred thirty-one".