32042423021 has 64 divisors (see below), whose sum is σ = 41710298112. Its totient is φ = 23966502912.

The previous prime is 32042423009. The next prime is 32042423053. The reversal of 32042423021 is 12032424023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32042423021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32042423921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40203395 + ... + 40204191.

It is an arithmetic number, because the mean of its divisors is an integer number (651723408).

Almost surely, 2^32042423021 is an apocalyptic number.

It is an amenable number.

32042423021 is a deficient number, since it is larger than the sum of its proper divisors (9667875091).

32042423021 is a wasteful number, since it uses less digits than its factorization.

32042423021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 32042423021 its reverse (12032424023), we get a palindrome (44074847044).

The spelling of 32042423021 in words is "thirty-two billion, forty-two million, four hundred twenty-three thousand, twenty-one".