142102420441301 has 4 divisors (see below), whose sum is σ = 145943026399212. Its totient is φ = 138261814483392.

The previous prime is 142102420441291. The next prime is 142102420441309. The reversal of 142102420441301 is 103144024201241.

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 51039965139076 + 91062455302225 = 7144226^2 + 9542665^2 .

It is a cyclic number.

It is not a de Polignac number, because 142102420441301 - 2²² = 142102416246997 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 (142102420441309) 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, 1920302978900 + ... + 1920302978973.

It is an arithmetic number, because the mean of its divisors is an integer number (36485756599803).

Almost surely, 2^{142102420441301} is an apocalyptic number.

It is an amenable number.

142102420441301 is a deficient number, since it is larger than the sum of its proper divisors (3840605957911).

142102420441301 is an equidigital number, since it uses as much as digits as its factorization.

142102420441301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840605957910.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 142102420441301 its reverse (103144024201241), we get a palindrome (245246444642542).

The spelling of 142102420441301 in words is "one hundred forty-two trillion, one hundred two billion, four hundred twenty million, four hundred forty-one thousand, three hundred one".