12144220031 has 8 divisors (see below), whose sum is σ = 12707773344. Its totient is φ = 11593052640.

The previous prime is 12144220027. The next prime is 12144220069. The reversal of 12144220031 is 13002244121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12144220031 - 2² = 12144220027 is a prime.

It is a super-2 number, since 2×12144220031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12144219985 and 12144220012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144220021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3094475 + ... + 3098396.

It is an arithmetic number, because the mean of its divisors is an integer number (1588471668).

Almost surely, 2^12144220031 is an apocalyptic number.

12144220031 is a deficient number, since it is larger than the sum of its proper divisors (563553313).

12144220031 is an equidigital number, since it uses as much as digits as its factorization.

12144220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192961.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12144220031 its reverse (13002244121), we get a palindrome (25146464152).

The spelling of 12144220031 in words is "twelve billion, one hundred forty-four million, two hundred twenty thousand, thirty-one".