12545312234 has 48 divisors (see below), whose sum is σ = 24211525632. Its totient is φ = 4747162464.

The previous prime is 12545312209. The next prime is 12545312237. The reversal of 12545312234 is 43221354521.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12545312234.

It is not an unprimeable number, because it can be changed into a prime (12545312237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31127 + ... + 161429.

It is an arithmetic number, because the mean of its divisors is an integer number (504406784).

Almost surely, 2^12545312234 is an apocalyptic number.

12545312234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12545312234 is a deficient number, since it is larger than the sum of its proper divisors (11666213398).

12545312234 is a wasteful number, since it uses less digits than its factorization.

12545312234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130371 (or 130348 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

Adding to 12545312234 its reverse (43221354521), we get a palindrome (55766666755).

The spelling of 12545312234 in words is "twelve billion, five hundred forty-five million, three hundred twelve thousand, two hundred thirty-four".