42121421432 has 32 divisors (see below), whose sum is σ = 83439374400. Its totient is φ = 19901825664.

The previous prime is 42121421413. The next prime is 42121421449. The reversal of 42121421432 is 23412412124.

42121421432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1920563 + ... + 1942370.

It is an arithmetic number, because the mean of its divisors is an integer number (2607480450).

Almost surely, 2^42121421432 is an apocalyptic number.

It is an amenable number.

42121421432 is a deficient number, since it is larger than the sum of its proper divisors (41317952968).

42121421432 is a wasteful number, since it uses less digits than its factorization.

42121421432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863015 (or 3863011 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

Adding to 42121421432 its reverse (23412412124), we get a palindrome (65533833556).

The spelling of 42121421432 in words is "forty-two billion, one hundred twenty-one million, four hundred twenty-one thousand, four hundred thirty-two".