42121434341 has 6 divisors (see below), whose sum is σ = 48998403270. Its totient is φ = 36104086536.

The previous prime is 42121434323. The next prime is 42121434349. The reversal of 42121434341 is 14343412124.

It can be written as a sum of positive squares in only one way, i.e., 41522212900 + 599221441 = 203770^2 + 24479^2 .

It is not a de Polignac number, because 42121434341 - 2¹⁴ = 42121417957 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 (42121434349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429810506 + ... + 429810603.

It is an arithmetic number, because the mean of its divisors is an integer number (8166400545).

Almost surely, 2^42121434341 is an apocalyptic number.

It is an amenable number.

42121434341 is a deficient number, since it is larger than the sum of its proper divisors (6876968929).

42121434341 is an equidigital number, since it uses as much as digits as its factorization.

42121434341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859621123 (or 859621116 counting only the distinct ones).

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

Adding to 42121434341 its reverse (14343412124), we get a palindrome (56464846465).

The spelling of 42121434341 in words is "forty-two billion, one hundred twenty-one million, four hundred thirty-four thousand, three hundred forty-one".