20111333133012 has 48 divisors (see below), whose sum is σ = 51416032382400. Its totient is φ = 6067730511360.

The previous prime is 20111333132977. The next prime is 20111333133049. The reversal of 20111333133012 is 21033133311102.

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 15 ways as a sum of consecutive naturals, for example, 332630437 + ... + 332690892.

It is an arithmetic number, because the mean of its divisors is an integer number (1071167341300).

Almost surely, 2^{20111333133012} is an apocalyptic number.

20111333133012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20111333133012 is an abundant number, since it is smaller than the sum of its proper divisors (31304699249388).

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

20111333133012 is a wasteful number, since it uses less digits than its factorization.

20111333133012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665321576 (or 665321574 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 20111333133012 its reverse (21033133311102), we get a palindrome (41144466444114).

The spelling of 20111333133012 in words is "twenty trillion, one hundred eleven billion, three hundred thirty-three million, one hundred thirty-three thousand, twelve".