42432103104421 has 4 divisors (see below), whose sum is σ = 42432118922592. Its totient is φ = 42432087286252.

The previous prime is 42432103104343. The next prime is 42432103104431. The reversal of 42432103104421 is 12440130123424.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42432103104421 - 2⁹ = 42432103103909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42432103104431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2774011 + ... + 9620776.

It is an arithmetic number, because the mean of its divisors is an integer number (10608029730648).

Almost surely, 2^{42432103104421} is an apocalyptic number.

It is an amenable number.

42432103104421 is a deficient number, since it is larger than the sum of its proper divisors (15818171).

42432103104421 is a wasteful number, since it uses less digits than its factorization.

42432103104421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15818170.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 42432103104421 its reverse (12440130123424), we get a palindrome (54872233227845).

The spelling of 42432103104421 in words is "forty-two trillion, four hundred thirty-two billion, one hundred three million, one hundred four thousand, four hundred twenty-one".