202104201042 has 24 divisors (see below), whose sum is σ = 443168251344. Its totient is φ = 66556403064.

The previous prime is 202104201041. The next prime is 202104201043. The reversal of 202104201042 is 240102401202.

202104201042 is a `hidden beast` number, since 20 + 210 + 420 + 10 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (202104201041) and next prime (202104201043).

It is a super-2 number, since 2×202104201042² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202104201041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67637128 + ... + 67640115.

It is an arithmetic number, because the mean of its divisors is an integer number (18465343806).

Almost surely, 2^202104201042 is an apocalyptic number.

202104201042 is an abundant number, since it is smaller than the sum of its proper divisors (241064050302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202104201042 is a wasteful number, since it uses less digits than its factorization.

202104201042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135277334 (or 135277331 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202104201042 its reverse (240102401202), we get a palindrome (442206602244).

The spelling of 202104201042 in words is "two hundred two billion, one hundred four million, two hundred one thousand, forty-two".