12423134332032 has 128 divisors (see below), whose sum is σ = 33564685651200. Its totient is φ = 4070077486080.

The previous prime is 12423134332027. The next prime is 12423134332033. The reversal of 12423134332032 is 23023343132421.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 12423134331984 and 12423134332002.

It is not an unprimeable number, because it can be changed into a prime (12423134332033) 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, 124716807 + ... + 124816377.

It is an arithmetic number, because the mean of its divisors is an integer number (262224106650).

Almost surely, 2^{12423134332032} is an apocalyptic number.

12423134332032 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 12423134332032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16782342825600).

12423134332032 is an abundant number, since it is smaller than the sum of its proper divisors (21141551319168).

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

12423134332032 is an equidigital number, since it uses as much as digits as its factorization.

12423134332032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105154 (or 105142 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 12423134332032 its reverse (23023343132421), we get a palindrome (35446477464453).

The spelling of 12423134332032 in words is "twelve trillion, four hundred twenty-three billion, one hundred thirty-four million, three hundred thirty-two thousand, thirty-two".