142001221103 has 4 divisors (see below), whose sum is σ = 162287109840. Its totient is φ = 121715332368.

The previous prime is 142001221093. The next prime is 142001221121. The reversal of 142001221103 is 301122100241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301122100241 = 1597 ⋅188554853.

It is not a de Polignac number, because 142001221103 - 2⁶ = 142001221039 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 (142001221163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10142944358 + ... + 10142944371.

It is an arithmetic number, because the mean of its divisors is an integer number (40571777460).

Almost surely, 2^142001221103 is an apocalyptic number.

142001221103 is a deficient number, since it is larger than the sum of its proper divisors (20285888737).

142001221103 is an equidigital number, since it uses as much as digits as its factorization.

142001221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20285888736.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 142001221103 its reverse (301122100241), we get a palindrome (443123321344).

The spelling of 142001221103 in words is "one hundred forty-two billion, one million, two hundred twenty-one thousand, one hundred three".