142042121431121 has 32 divisors (see below), whose sum is σ = 152324362080000. Its totient is φ = 131984611799040.

The previous prime is 142042121431079. The next prime is 142042121431151. The reversal of 142042121431121 is 121134121240241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142042121431121 - 2²⁶ = 142042054322257 is a prime.

It is a super-2 number, since 2×142042121431121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142042121431151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6812888105 + ... + 6812908953.

It is an arithmetic number, because the mean of its divisors is an integer number (4760136315000).

Almost surely, 2^{142042121431121} is an apocalyptic number.

It is an amenable number.

142042121431121 is a deficient number, since it is larger than the sum of its proper divisors (10282240648879).

142042121431121 is a wasteful number, since it uses less digits than its factorization.

142042121431121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36569.

The product of its (nonzero) digits is 3072, while the sum is 29.

Adding to 142042121431121 its reverse (121134121240241), we get a palindrome (263176242671362).

The spelling of 142042121431121 in words is "one hundred forty-two trillion, forty-two billion, one hundred twenty-one million, four hundred thirty-one thousand, one hundred twenty-one".