142121450512142 has 4 divisors (see below), whose sum is σ = 213182175768216. Its totient is φ = 71060725256070.

The previous prime is 142121450512133. The next prime is 142121450512163. The reversal of 142121450512142 is 241215054121241.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35530362628034 + ... + 35530362628037.

It is an arithmetic number, because the mean of its divisors is an integer number (53295543942054).

Almost surely, 2^{142121450512142} is an apocalyptic number.

142121450512142 is a deficient number, since it is larger than the sum of its proper divisors (71060725256074).

142121450512142 is an equidigital number, since it uses as much as digits as its factorization.

142121450512142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71060725256073.

The product of its (nonzero) digits is 25600, while the sum is 35.

The spelling of 142121450512142 in words is "one hundred forty-two trillion, one hundred twenty-one billion, four hundred fifty million, five hundred twelve thousand, one hundred forty-two".