142043211021 has 8 divisors (see below), whose sum is σ = 189394149280. Its totient is φ = 94693873392.

The previous prime is 142043211007. The next prime is 142043211031. The reversal of 142043211021 is 120112340241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142043211021 - 2⁵ = 142043210989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142043211031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 174991 + ... + 560988.

It is an arithmetic number, because the mean of its divisors is an integer number (23674268660).

Almost surely, 2^142043211021 is an apocalyptic number.

It is an amenable number.

142043211021 is a deficient number, since it is larger than the sum of its proper divisors (47350938259).

142043211021 is an equidigital number, since it uses as much as digits as its factorization.

142043211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800315.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 142043211021 its reverse (120112340241), we get a palindrome (262155551262).

The spelling of 142043211021 in words is "one hundred forty-two billion, forty-three million, two hundred eleven thousand, twenty-one".