20043431311112 has 16 divisors (see below), whose sum is σ = 40997927682000. Its totient is φ = 9110650595920.

The previous prime is 20043431311109. The next prime is 20043431311139. The reversal of 20043431311112 is 21111313434002.

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, 113883132362 + ... + 113883132537.

It is an arithmetic number, because the mean of its divisors is an integer number (2562370480125).

Almost surely, 2^{20043431311112} is an apocalyptic number.

20043431311112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20043431311112 is an abundant number, since it is smaller than the sum of its proper divisors (20954496370888).

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

20043431311112 is a wasteful number, since it uses less digits than its factorization.

20043431311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227766264916 (or 227766264912 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 20043431311112 its reverse (21111313434002), we get a palindrome (41154744745114).

The spelling of 20043431311112 in words is "twenty trillion, forty-three billion, four hundred thirty-one million, three hundred eleven thousand, one hundred twelve".