142121043121002 has 128 divisors (see below), whose sum is σ = 314630936395776. Its totient is φ = 42439526400000.

The previous prime is 142121043120997. The next prime is 142121043121039. The reversal of 142121043121002 is 200121340121241.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 2108868727 + ... + 2108936117.

It is an arithmetic number, because the mean of its divisors is an integer number (2458054190592).

Almost surely, 2^{142121043121002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142121043121002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157315468197888).

142121043121002 is an abundant number, since it is smaller than the sum of its proper divisors (172509893274774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142121043121002 is a wasteful number, since it uses less digits than its factorization.

142121043121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68996.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 142121043121002 its reverse (200121340121241), we get a palindrome (342242383242243).

The spelling of 142121043121002 in words is "one hundred forty-two trillion, one hundred twenty-one billion, forty-three million, one hundred twenty-one thousand, two".