12290423 has 2 divisors, whose sum is σ = 12290424. Its totient is φ = 12290422.

The previous prime is 12290417. The next prime is 12290429. The reversal of 12290423 is 32409221.

It is a balanced prime because it is at equal distance from previous prime (12290417) and next prime (12290429).

It is a cyclic number.

It is not a de Polignac number, because 12290423 - 2¹⁰ = 12289399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12290429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145211 + 6145212.

It is an arithmetic number, because the mean of its divisors is an integer number (6145212).

Almost surely, 2^12290423 is an apocalyptic number.

12290423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290423 is an equidigital number, since it uses as much as digits as its factorization.

12290423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12290423 is about 3505.7699582260. The cubic root of 12290423 is about 230.7750976600.

Adding to 12290423 its reverse (32409221), we get a palindrome (44699644).

The spelling of 12290423 in words is "twelve million, two hundred ninety thousand, four hundred twenty-three".