20031211021112 has 32 divisors (see below), whose sum is σ = 38023228214400. Its totient is φ = 9892196635104.

The previous prime is 20031211021069. The next prime is 20031211021127. The reversal of 20031211021112 is 21112011213002.

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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31758578 + ... + 32383169.

It is an arithmetic number, because the mean of its divisors is an integer number (1188225881700).

Almost surely, 2^{20031211021112} is an apocalyptic number.

It is an amenable number.

20031211021112 is a deficient number, since it is larger than the sum of its proper divisors (17992017193288).

20031211021112 is a wasteful number, since it uses less digits than its factorization.

20031211021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64142235 (or 64142231 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20031211021112 its reverse (21112011213002), we get a palindrome (41143222234114).

The spelling of 20031211021112 in words is "twenty trillion, thirty-one billion, two hundred eleven million, twenty-one thousand, one hundred twelve".