42331413000221 has 4 divisors (see below), whose sum is σ = 42339193085244. Its totient is φ = 42323632915200.

The previous prime is 42331413000209. The next prime is 42331413000319. The reversal of 42331413000221 is 12200031413324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13401537177721 + 28929875822500 = 3660811^2 + 5378650^2 .

It is a cyclic number.

It is not a de Polignac number, because 42331413000221 - 2²⁶ = 42331345891357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42331413003221) 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, 3890034350 + ... + 3890045231.

It is an arithmetic number, because the mean of its divisors is an integer number (10584798271311).

Almost surely, 2^{42331413000221} is an apocalyptic number.

It is an amenable number.

42331413000221 is a deficient number, since it is larger than the sum of its proper divisors (7780085023).

42331413000221 is an equidigital number, since it uses as much as digits as its factorization.

42331413000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780085022.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 42331413000221 its reverse (12200031413324), we get a palindrome (54531444413545).

The spelling of 42331413000221 in words is "forty-two trillion, three hundred thirty-one billion, four hundred thirteen million, two hundred twenty-one", and thus it is an aban number.