12231434 has 4 divisors (see below), whose sum is σ = 18347154. Its totient is φ = 6115716.

The previous prime is 12231433. The next prime is 12231463. The reversal of 12231434 is 43413221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43413221 = 89 ⋅487789.

It can be written as a sum of positive squares in only one way, i.e., 11323225 + 908209 = 3365^2 + 953^2 .

It is not an unprimeable number, because it can be changed into a prime (12231431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3057857 + ... + 3057860.

Almost surely, 2^12231434 is an apocalyptic number.

12231434 is a deficient number, since it is larger than the sum of its proper divisors (6115720).

12231434 is an equidigital number, since it uses as much as digits as its factorization.

12231434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115719.

The product of its digits is 576, while the sum is 20.

The square root of 12231434 is about 3497.3467085778. The cubic root of 12231434 is about 230.4052967251.

Adding to 12231434 its reverse (43413221), we get a palindrome (55644655).

The spelling of 12231434 in words is "twelve million, two hundred thirty-one thousand, four hundred thirty-four".