12143203031 has 16 divisors (see below), whose sum is σ = 13404271200. Its totient is φ = 10955202048.

The previous prime is 12143203021. The next prime is 12143203063. The reversal of 12143203031 is 13030234121.

It is a cyclic number.

It is not a de Polignac number, because 12143203031 - 2²² = 12139008727 is a prime.

It is a super-2 number, since 2×12143203031² (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 = 12143202994 and 12143203012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143203021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110726 + ... + 191171.

It is an arithmetic number, because the mean of its divisors is an integer number (837766950).

Almost surely, 2^12143203031 is an apocalyptic number.

12143203031 is a deficient number, since it is larger than the sum of its proper divisors (1261068169).

12143203031 is a wasteful number, since it uses less digits than its factorization.

12143203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302018.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12143203031 its reverse (13030234121), we get a palindrome (25173437152).

The spelling of 12143203031 in words is "twelve billion, one hundred forty-three million, two hundred three thousand, thirty-one".