142203312114221 has 4 divisors (see below), whose sum is σ = 142269731225244. Its totient is φ = 142136893003200.

The previous prime is 142203312114209. The next prime is 142203312114229. The reversal of 142203312114221 is 122411213302241.

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 121998961358596 + 20204350755625 = 11045314^2 + 4494925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142203312114221 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 (142203312114229) 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, 33209552300 + ... + 33209556581.

It is an arithmetic number, because the mean of its divisors is an integer number (35567432806311).

Almost surely, 2^{142203312114221} is an apocalyptic number.

It is an amenable number.

142203312114221 is a deficient number, since it is larger than the sum of its proper divisors (66419111023).

142203312114221 is an equidigital number, since it uses as much as digits as its factorization.

142203312114221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66419111022.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 142203312114221 its reverse (122411213302241), we get a palindrome (264614525416462).

The spelling of 142203312114221 in words is "one hundred forty-two trillion, two hundred three billion, three hundred twelve million, one hundred fourteen thousand, two hundred twenty-one".