12344121231 has 16 divisors (see below), whose sum is σ = 17781538656. Its totient is φ = 7572105216.

The previous prime is 12344121203. The next prime is 12344121239. The reversal of 12344121231 is 13212144321.

It is not a de Polignac number, because 12344121231 - 2²² = 12339926927 is a prime.

It is a super-2 number, since 2×12344121231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344121239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493410 + ... + 517823.

It is an arithmetic number, because the mean of its divisors is an integer number (1111346166).

Almost surely, 2^12344121231 is an apocalyptic number.

12344121231 is a deficient number, since it is larger than the sum of its proper divisors (5437417425).

12344121231 is a wasteful number, since it uses less digits than its factorization.

12344121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011562.

The product of its digits is 1152, while the sum is 24.

Adding to 12344121231 its reverse (13212144321), we get a palindrome (25556265552).

The spelling of 12344121231 in words is "twelve billion, three hundred forty-four million, one hundred twenty-one thousand, two hundred thirty-one".