12230440134 has 32 divisors (see below), whose sum is σ = 26691341184. Its totient is φ = 3705257280.

The previous prime is 12230440133. The next prime is 12230440147. The reversal of 12230440134 is 43104403221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230440133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266722 + ... + 309194.

It is an arithmetic number, because the mean of its divisors is an integer number (834104412).

Almost surely, 2^12230440134 is an apocalyptic number.

12230440134 is an abundant number, since it is smaller than the sum of its proper divisors (14460901050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12230440134 is a wasteful number, since it uses less digits than its factorization.

12230440134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46852.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12230440134 its reverse (43104403221), we get a palindrome (55334843355).

The spelling of 12230440134 in words is "twelve billion, two hundred thirty million, four hundred forty thousand, one hundred thirty-four".