42434120310221 has 16 divisors (see below), whose sum is σ = 43356785702400. Its totient is φ = 41519274857280.

The previous prime is 42434120310149. The next prime is 42434120310233. The reversal of 42434120310221 is 12201302143424.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42434120310221 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 (42434120310271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8187830 + ... + 12325128.

It is an arithmetic number, because the mean of its divisors is an integer number (2709799106400).

Almost surely, 2^{42434120310221} is an apocalyptic number.

It is an amenable number.

42434120310221 is a deficient number, since it is larger than the sum of its proper divisors (922665392179).

42434120310221 is a wasteful number, since it uses less digits than its factorization.

42434120310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138244.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 42434120310221 its reverse (12201302143424), we get a palindrome (54635422453645).

The spelling of 42434120310221 in words is "forty-two trillion, four hundred thirty-four billion, one hundred twenty million, three hundred ten thousand, two hundred twenty-one".