20112131311000 has 32 divisors (see below), whose sum is σ = 47062387270080. Its totient is φ = 8044852524000.

The previous prime is 20112131310991. The next prime is 20112131311031. The reversal of 20112131311000 is 11313121102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10056064656 + ... + 10056066655.

It is an arithmetic number, because the mean of its divisors is an integer number (1470699602190).

Almost surely, 2^{20112131311000} is an apocalyptic number.

20112131311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112131311000 is an abundant number, since it is smaller than the sum of its proper divisors (26950255959080).

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

20112131311000 is a wasteful number, since it uses less digits than its factorization.

20112131311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20112131332 (or 20112131318 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20112131311000 its reverse (11313121102), we get a palindrome (20123444432102).

The spelling of 20112131311000 in words is "twenty trillion, one hundred twelve billion, one hundred thirty-one million, three hundred eleven thousand".