12131434 has 16 divisors (see below), whose sum is σ = 20844288. Its totient is φ = 5187312.

The previous prime is 12131429. The next prime is 12131437. The reversal of 12131434 is 43413121.

12131434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12131437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8479 + ... + 9805.

It is an arithmetic number, because the mean of its divisors is an integer number (1302768).

Almost surely, 2^12131434 is an apocalyptic number.

12131434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12131434 is a deficient number, since it is larger than the sum of its proper divisors (8712854).

12131434 is a wasteful number, since it uses less digits than its factorization.

12131434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989.

The product of its digits is 288, while the sum is 19.

The square root of 12131434 is about 3483.0208153268. The cubic root of 12131434 is about 229.7756728964.

Adding to 12131434 its reverse (43413121), we get a palindrome (55544555).

The spelling of 12131434 in words is "twelve million, one hundred thirty-one thousand, four hundred thirty-four".