12144333431 has 8 divisors (see below), whose sum is σ = 12941973504. Its totient is φ = 11369162200.

The previous prime is 12144333403. The next prime is 12144333457. The reversal of 12144333431 is 13433344121.

It is a happy number.

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

It is not a de Polignac number, because 12144333431 - 2¹⁸ = 12144071287 is a prime.

It is a super-2 number, since 2×12144333431² (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 = 12144333394 and 12144333403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144333031) 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, 5616095 + ... + 5618256.

It is an arithmetic number, because the mean of its divisors is an integer number (1617746688).

Almost surely, 2^12144333431 is an apocalyptic number.

12144333431 is a deficient number, since it is larger than the sum of its proper divisors (797640073).

12144333431 is a wasteful number, since it uses less digits than its factorization.

12144333431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11234421.

The product of its digits is 10368, while the sum is 29.

Adding to 12144333431 its reverse (13433344121), we get a palindrome (25577677552).

The spelling of 12144333431 in words is "twelve billion, one hundred forty-four million, three hundred thirty-three thousand, four hundred thirty-one".