12421032032 has 96 divisors (see below), whose sum is σ = 26130424320. Its totient is φ = 5795297280.

The previous prime is 12421032011. The next prime is 12421032037. The reversal of 12421032032 is 23023012421.

It is a junction number, because it is equal to n+sod(n) for n = 12421031995 and 12421032013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421032037) 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, 15091973 + ... + 15092795.

It is an arithmetic number, because the mean of its divisors is an integer number (272191920).

Almost surely, 2^12421032032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12421032032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13065212160).

12421032032 is an abundant number, since it is smaller than the sum of its proper divisors (13709392288).

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

12421032032 is a wasteful number, since it uses less digits than its factorization.

12421032032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12421032032 its reverse (23023012421), we get a palindrome (35444044453).

The spelling of 12421032032 in words is "twelve billion, four hundred twenty-one million, thirty-two thousand, thirty-two".