20112131131333 has 12 divisors (see below), whose sum is σ = 21043652656320. Its totient is φ = 19220248847096.

The previous prime is 20112131131319. The next prime is 20112131131349. The reversal of 20112131131333 is 33313113121102.

It is not a de Polignac number, because 20112131131333 - 2⁹ = 20112131130821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112131131298 and 20112131131307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112131131133) 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, 16650943 + ... + 17817916.

It is an arithmetic number, because the mean of its divisors is an integer number (1753637721360).

Almost surely, 2^{20112131131333} is an apocalyptic number.

20112131131333 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20112131131333 is a deficient number, since it is larger than the sum of its proper divisors (931521524987).

20112131131333 is a wasteful number, since it uses less digits than its factorization.

20112131131333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34470008 (or 34469985 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 20112131131333 its reverse (33313113121102), we get a palindrome (53425244252435).

The spelling of 20112131131333 in words is "twenty trillion, one hundred twelve billion, one hundred thirty-one million, one hundred thirty-one thousand, three hundred thirty-three".