142361242121 has 16 divisors (see below), whose sum is σ = 178209383040. Its totient is φ = 110885832960.

The previous prime is 142361242117. The next prime is 142361242207. The reversal of 142361242121 is 121242163241.

It is a happy number.

It is not a de Polignac number, because 142361242121 - 2² = 142361242117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142361248121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20622635 + ... + 20629536.

It is an arithmetic number, because the mean of its divisors is an integer number (11138086440).

Almost surely, 2^142361242121 is an apocalyptic number.

It is an amenable number.

142361242121 is a deficient number, since it is larger than the sum of its proper divisors (35848140919).

142361242121 is a wasteful number, since it uses less digits than its factorization.

142361242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41252224.

The product of its digits is 4608, while the sum is 29.

The spelling of 142361242121 in words is "one hundred forty-two billion, three hundred sixty-one million, two hundred forty-two thousand, one hundred twenty-one".