12371031 has 6 divisors (see below), whose sum is σ = 17869280. Its totient is φ = 8247348.

The previous prime is 12371027. The next prime is 12371039. The reversal of 12371031 is 13017321.

It is not a de Polignac number, because 12371031 - 2² = 12371027 is a prime.

It is a super-2 number, since 2×12371031² = 306084816005922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12370995 and 12371013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12371039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 687271 + ... + 687288.

Almost surely, 2^12371031 is an apocalyptic number.

12371031 is a deficient number, since it is larger than the sum of its proper divisors (5498249).

12371031 is a wasteful number, since it uses less digits than its factorization.

12371031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374565 (or 1374562 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 12371031 is about 3517.2476455319. The cubic root of 12371031 is about 231.2785193947.

Adding to 12371031 its reverse (13017321), we get a palindrome (25388352).

The spelling of 12371031 in words is "twelve million, three hundred seventy-one thousand, thirty-one".