42412344121121 has 4 divisors (see below), whose sum is σ = 45674832130452. Its totient is φ = 39149856111792.

The previous prime is 42412344121087. The next prime is 42412344121141. The reversal of 42412344121121 is 12112144321424.

It is a happy number.

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 24497441361121 + 17914902760000 = 4949489^2 + 4232600^2 .

It is a cyclic number.

It is not a de Polignac number, because 42412344121121 - 2⁶ = 42412344121057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42412344121141) 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, 1631244004646 + ... + 1631244004671.

It is an arithmetic number, because the mean of its divisors is an integer number (11418708032613).

Almost surely, 2^{42412344121121} is an apocalyptic number.

It is an amenable number.

42412344121121 is a deficient number, since it is larger than the sum of its proper divisors (3262488009331).

42412344121121 is a wasteful number, since it uses less digits than its factorization.

42412344121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262488009330.

The product of its digits is 12288, while the sum is 32.

Adding to 42412344121121 its reverse (12112144321424), we get a palindrome (54524488442545).

The spelling of 42412344121121 in words is "forty-two trillion, four hundred twelve billion, three hundred forty-four million, one hundred twenty-one thousand, one hundred twenty-one".