12190331 has 2 divisors, whose sum is σ = 12190332. Its totient is φ = 12190330.

The previous prime is 12190307. The next prime is 12190333. The reversal of 12190331 is 13309121.

12190331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12190331 is a prime.

It is a super-2 number, since 2×12190331² = 297208339779122, which contains 22 as substring.

Together with 12190333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12190333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6095165 + 6095166.

It is an arithmetic number, because the mean of its divisors is an integer number (6095166).

Almost surely, 2^12190331 is an apocalyptic number.

12190331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12190331 is an equidigital number, since it uses as much as digits as its factorization.

12190331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 12190331 is about 3491.4654516406. The cubic root of 12190331 is about 230.1469193634.

Adding to 12190331 its reverse (13309121), we get a palindrome (25499452).

It can be divided in two parts, 12190 and 331, that added together give a palindrome (12521).

The spelling of 12190331 in words is "twelve million, one hundred ninety thousand, three hundred thirty-one".