12454143132 has 48 divisors (see below), whose sum is σ = 30369588480. Its totient is φ = 3964802688.

The previous prime is 12454143103. The next prime is 12454143137. The reversal of 12454143132 is 23134145421.

It is a self number, because there is not a number n which added to its sum of digits gives 12454143132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454143137) 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, 147648 + ... + 216120.

It is an arithmetic number, because the mean of its divisors is an integer number (632699760).

Almost surely, 2^12454143132 is an apocalyptic number.

12454143132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12454143132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15184794240).

12454143132 is an abundant number, since it is smaller than the sum of its proper divisors (17915445348).

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

12454143132 is a wasteful number, since it uses less digits than its factorization.

12454143132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69162 (or 69160 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 12454143132 its reverse (23134145421), we get a palindrome (35588288553).

The spelling of 12454143132 in words is "twelve billion, four hundred fifty-four million, one hundred forty-three thousand, one hundred thirty-two".