12143031 has 8 divisors (see below), whose sum is σ = 16206960. Its totient is φ = 8087232.

The previous prime is 12143023. The next prime is 12143063. The reversal of 12143031 is 13034121.

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

It is not a de Polignac number, because 12143031 - 2³ = 12143023 is a prime.

It is a super-2 number, since 2×12143031² = 294906403733922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12143031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144031) 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, 4105 + ... + 6413.

It is an arithmetic number, because the mean of its divisors is an integer number (2025870).

Almost surely, 2^12143031 is an apocalyptic number.

12143031 is a deficient number, since it is larger than the sum of its proper divisors (4063929).

12143031 is a wasteful number, since it uses less digits than its factorization.

12143031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12143031 is about 3484.6852081644. The cubic root of 12143031 is about 229.8488673163.

Adding to 12143031 its reverse (13034121), we get a palindrome (25177152).

The spelling of 12143031 in words is "twelve million, one hundred forty-three thousand, thirty-one".