12143402331 has 8 divisors (see below), whose sum is σ = 16628803344. Its totient is φ = 7876801440.

The previous prime is 12143402329. The next prime is 12143402351. The reversal of 12143402331 is 13320434121.

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 12143402331 - 2¹ = 12143402329 is a prime.

It is a super-2 number, since 2×12143402331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12143402351) 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, 54699900 + ... + 54700121.

It is an arithmetic number, because the mean of its divisors is an integer number (2078600418).

Almost surely, 2^12143402331 is an apocalyptic number.

12143402331 is a deficient number, since it is larger than the sum of its proper divisors (4485401013).

12143402331 is a wasteful number, since it uses less digits than its factorization.

12143402331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109400061.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12143402331 its reverse (13320434121), we get a palindrome (25463836452).

The spelling of 12143402331 in words is "twelve billion, one hundred forty-three million, four hundred two thousand, three hundred thirty-one".