42231000021 has 8 divisors (see below), whose sum is σ = 64352000064. Its totient is φ = 24132000000.

The previous prime is 42231000017. The next prime is 42231000029. The reversal of 42231000021 is 12000013224.

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

It is not a de Polignac number, because 42231000021 - 2² = 42231000017 is a prime.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42231000029) 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, 1005499980 + ... + 1005500021.

It is an arithmetic number, because the mean of its divisors is an integer number (8044000008).

Almost surely, 2^42231000021 is an apocalyptic number.

It is an amenable number.

42231000021 is a deficient number, since it is larger than the sum of its proper divisors (22121000043).

42231000021 is a wasteful number, since it uses less digits than its factorization.

42231000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011000011.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 42231000021 its reverse (12000013224), we get a palindrome (54231013245).

The spelling of 42231000021 in words is "forty-two billion, two hundred thirty-one million, twenty-one", and thus it is an aban number.