6442110031021 has 8 divisors (see below), whose sum is σ = 7362427657280. Its totient is φ = 5521796453088.

The previous prime is 6442110031013. The next prime is 6442110031037. The reversal of 6442110031021 is 1201300112446.

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

It is a cyclic number.

It is not a de Polignac number, because 6442110031021 - 2³ = 6442110031013 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 (6242110031021) 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, 4159825 + ... + 5494393.

It is an arithmetic number, because the mean of its divisors is an integer number (920303457160).

Almost surely, 2^{6442110031021} is an apocalyptic number.

It is an amenable number.

6442110031021 is a deficient number, since it is larger than the sum of its proper divisors (920317626259).

6442110031021 is a wasteful number, since it uses less digits than its factorization.

6442110031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024163.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 6442110031021 its reverse (1201300112446), we get a palindrome (7643410143467).

The spelling of 6442110031021 in words is "six trillion, four hundred forty-two billion, one hundred ten million, thirty-one thousand, twenty-one".