12403031 has 2 divisors, whose sum is σ = 12403032. Its totient is φ = 12403030.

The previous prime is 12403019. The next prime is 12403043. The reversal of 12403031 is 13030421.

12403031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (12403019) and next prime (12403043).

It is a cyclic number.

It is not a de Polignac number, because 12403031 - 2¹⁰ = 12402007 is a prime.

It is a super-2 number, since 2×12403031² = 307670355973922, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 12402997 and 12403015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12403051) 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 as a sum of consecutive naturals, namely, 6201515 + 6201516.

It is an arithmetic number, because the mean of its divisors is an integer number (6201516).

Almost surely, 2^12403031 is an apocalyptic number.

12403031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12403031 is an equidigital number, since it uses as much as digits as its factorization.

12403031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12403031 is about 3521.7937191153. The cubic root of 12403031 is about 231.4777628394.

Adding to 12403031 its reverse (13030421), we get a palindrome (25433452).

The spelling of 12403031 in words is "twelve million, four hundred three thousand, thirty-one".