20340140142202 has 8 divisors (see below), whose sum is σ = 30510715054356. Its totient is φ = 10169901790752.

The previous prime is 20340140142173. The next prime is 20340140142229. The reversal of 20340140142202 is 20224104104302.

It can be written as a sum of positive squares in 2 ways, for example, as 20070229760361 + 269910381841 = 4479981^2 + 519529^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83989033 + ... + 84230860.

Almost surely, 2^{20340140142202} is an apocalyptic number.

20340140142202 is a deficient number, since it is larger than the sum of its proper divisors (10170574912154).

20340140142202 is a wasteful number, since it uses less digits than its factorization.

20340140142202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168280352.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20340140142202 its reverse (20224104104302), we get a palindrome (40564244246504).

The spelling of 20340140142202 in words is "twenty trillion, three hundred forty billion, one hundred forty million, one hundred forty-two thousand, two hundred two".