20012131104232 has 32 divisors (see below), whose sum is σ = 37991262214080. Its totient is φ = 9881232197760.

The previous prime is 20012131104209. The next prime is 20012131104233. The reversal of 20012131104232 is 23240113121002.

It is not an unprimeable number, because it can be changed into a prime (20012131104233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4986213 + ... + 8055220.

It is an arithmetic number, because the mean of its divisors is an integer number (1187226944190).

Almost surely, 2^{20012131104232} is an apocalyptic number.

It is an amenable number.

20012131104232 is a deficient number, since it is larger than the sum of its proper divisors (17979131109848).

20012131104232 is a wasteful number, since it uses less digits than its factorization.

20012131104232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13043833 (or 13043829 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20012131104232 its reverse (23240113121002), we get a palindrome (43252244225234).

The spelling of 20012131104232 in words is "twenty trillion, twelve billion, one hundred thirty-one million, one hundred four thousand, two hundred thirty-two".