20111142001204 has 12 divisors (see below), whose sum is σ = 37264763120004. Its totient is φ = 9464066824064.

The previous prime is 20111142001163. The next prime is 20111142001267. The reversal of 20111142001204 is 40210024111102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16506262584100 + 3604879417104 = 4062790^2 + 1898652^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147876044059 + ... + 147876044194.

It is an arithmetic number, because the mean of its divisors is an integer number (3105396926667).

Almost surely, 2^{20111142001204} is an apocalyptic number.

It is an amenable number.

20111142001204 is a deficient number, since it is larger than the sum of its proper divisors (17153621118800).

20111142001204 is a wasteful number, since it uses less digits than its factorization.

20111142001204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295752088274 (or 295752088272 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20111142001204 its reverse (40210024111102), we get a palindrome (60321166112306).

The spelling of 20111142001204 in words is "twenty trillion, one hundred eleven billion, one hundred forty-two million, one thousand, two hundred four".