42010423021 has 8 divisors (see below), whose sum is σ = 48048769664. Its totient is φ = 35981290800.

The previous prime is 42010423019. The next prime is 42010423027. The reversal of 42010423021 is 12032401024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42010423021 - 2¹ = 42010423019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42010423021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42010423027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293830 + ... + 2312071.

It is an arithmetic number, because the mean of its divisors is an integer number (6006096208).

Almost surely, 2^42010423021 is an apocalyptic number.

It is an amenable number.

42010423021 is a deficient number, since it is larger than the sum of its proper divisors (6038346643).

42010423021 is a wasteful number, since it uses less digits than its factorization.

42010423021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607211.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 42010423021 its reverse (12032401024), we get a palindrome (54042824045).

The spelling of 42010423021 in words is "forty-two billion, ten million, four hundred twenty-three thousand, twenty-one".