142020210001 has 4 divisors (see below), whose sum is σ = 145484117604. Its totient is φ = 138556302400.

The previous prime is 142020209963. The next prime is 142020210023. The reversal of 142020210001 is 100012020241.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5844449601 + 136175760400 = 76449^2 + 369020^2 .

It is a cyclic number.

It is not a de Polignac number, because 142020210001 - 2¹⁹ = 142019685713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142020210041) 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 3 ways as a sum of consecutive naturals, for example, 1731953740 + ... + 1731953821.

It is an arithmetic number, because the mean of its divisors is an integer number (36371029401).

Almost surely, 2^142020210001 is an apocalyptic number.

It is an amenable number.

142020210001 is a deficient number, since it is larger than the sum of its proper divisors (3463907603).

142020210001 is an equidigital number, since it uses as much as digits as its factorization.

142020210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463907602.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 142020210001 its reverse (100012020241), we get a palindrome (242032230242).

The spelling of 142020210001 in words is "one hundred forty-two billion, twenty million, two hundred ten thousand, one".