12471420032 has 128 divisors (see below), whose sum is σ = 27631718400. Its totient is φ = 5582545920.

The previous prime is 12471420011. The next prime is 12471420067. The reversal of 12471420032 is 23002417421.

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

It is a super-2 number, since 2×12471420032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12471419983 and 12471420010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3239933 + ... + 3243779.

It is an arithmetic number, because the mean of its divisors is an integer number (215872800).

Almost surely, 2^12471420032 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 12471420032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13815859200).

12471420032 is an abundant number, since it is smaller than the sum of its proper divisors (15160298368).

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

12471420032 is a wasteful number, since it uses less digits than its factorization.

12471420032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954 (or 3942 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 12471420032 its reverse (23002417421), we get a palindrome (35473837453).

The spelling of 12471420032 in words is "twelve billion, four hundred seventy-one million, four hundred twenty thousand, thirty-two".