20331312011012 has 24 divisors (see below), whose sum is σ = 35761654075392. Its totient is φ = 10113828944000.

The previous prime is 20331312010991. The next prime is 20331312011053. The reversal of 20331312011012 is 21011021313302.

It is a happy 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, 15933164 + ... + 17161827.

It is an arithmetic number, because the mean of its divisors is an integer number (1490068919808).

Almost surely, 2^{20331312011012} is an apocalyptic number.

It is an amenable number.

20331312011012 is a deficient number, since it is larger than the sum of its proper divisors (15430342064380).

20331312011012 is a wasteful number, since it uses less digits than its factorization.

20331312011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33095779 (or 33095777 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20331312011012 its reverse (21011021313302), we get a palindrome (41342333324314).

The spelling of 20331312011012 in words is "twenty trillion, three hundred thirty-one billion, three hundred twelve million, eleven thousand, twelve".