12043931 has 2 divisors, whose sum is σ = 12043932. Its totient is φ = 12043930.

The previous prime is 12043919. The next prime is 12043949. The reversal of 12043931 is 13934021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12043931 - 2¹⁰ = 12042907 is a prime.

It is a super-2 number, since 2×12043931² = 290112547865522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12043897 and 12043906.

It is not a weakly prime, because it can be changed into another prime (12043951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021965 + 6021966.

It is an arithmetic number, because the mean of its divisors is an integer number (6021966).

Almost surely, 2^12043931 is an apocalyptic number.

12043931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12043931 is an equidigital number, since it uses as much as digits as its factorization.

12043931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 12043931 is about 3470.4367160345. The cubic root of 12043931 is about 229.2218885031.

Adding to 12043931 its reverse (13934021), we get a palindrome (25977952).

The spelling of 12043931 in words is "twelve million, forty-three thousand, nine hundred thirty-one".