202020341242 has 16 divisors (see below), whose sum is σ = 304752357000. Its totient is φ = 100436397120.

The previous prime is 202020341239. The next prime is 202020341261. The reversal of 202020341242 is 242143020202.

It can be written as a sum of positive squares in 4 ways, for example, as 181585924641 + 20434416601 = 426129^2 + 142949^2 .

It is a super-2 number, since 2×202020341242² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2475384 + ... + 2555692.

Almost surely, 2^202020341242 is an apocalyptic number.

202020341242 is a deficient number, since it is larger than the sum of its proper divisors (102732015758).

202020341242 is a wasteful number, since it uses less digits than its factorization.

202020341242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87441.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 202020341242 its reverse (242143020202), we get a palindrome (444163361444).

The spelling of 202020341242 in words is "two hundred two billion, twenty million, three hundred forty-one thousand, two hundred forty-two".