2031223321112 has 16 divisors (see below), whose sum is σ = 3808812015360. Its totient is φ = 1015540117024.

The previous prime is 2031223321087. The next prime is 2031223321117. The reversal of 2031223321112 is 2111233221302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031223321117) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8822183 + ... + 9049494.

It is an arithmetic number, because the mean of its divisors is an integer number (238050750960).

Almost surely, 2^{2031223321112} is an apocalyptic number.

It is an amenable number.

2031223321112 is a deficient number, since it is larger than the sum of its proper divisors (1777588694248).

2031223321112 is a wasteful number, since it uses less digits than its factorization.

2031223321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17885890 (or 17885886 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2031223321112 its reverse (2111233221302), we get a palindrome (4142456542414).

The spelling of 2031223321112 in words is "two trillion, thirty-one billion, two hundred twenty-three million, three hundred twenty-one thousand, one hundred twelve".