20211233031112 has 8 divisors (see below), whose sum is σ = 37896061933350. Its totient is φ = 10105616515552.

The previous prime is 20211233031053. The next prime is 20211233031113. The reversal of 20211233031112 is 21113033211202.

It can be written as a sum of positive squares in only one way, i.e., 19591193325636 + 620039705476 = 4426194^2 + 787426^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20211233031113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263202064437 + ... + 1263202064452.

Almost surely, 2^{20211233031112} is an apocalyptic number.

It is an amenable number.

20211233031112 is a deficient number, since it is larger than the sum of its proper divisors (17684828902238).

20211233031112 is a wasteful number, since it uses less digits than its factorization.

20211233031112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526404128895 (or 2526404128891 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20211233031112 its reverse (21113033211202), we get a palindrome (41324266242314).

The spelling of 20211233031112 in words is "twenty trillion, two hundred eleven billion, two hundred thirty-three million, thirty-one thousand, one hundred twelve".