20031101212 has 48 divisors (see below), whose sum is σ = 37880156160. Its totient is φ = 9239896512.

The previous prime is 20031101191. The next prime is 20031101261. The reversal of 20031101212 is 21210113002.

It is a junction number, because it is equal to n+sod(n) for n = 20031101192 and 20031101201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2896663 + ... + 2903569.

It is an arithmetic number, because the mean of its divisors is an integer number (789169920).

Almost surely, 2^20031101212 is an apocalyptic number.

It is an amenable number.

20031101212 is a deficient number, since it is larger than the sum of its proper divisors (17849054948).

20031101212 is a wasteful number, since it uses less digits than its factorization.

20031101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050 (or 8048 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20031101212 its reverse (21210113002), we get a palindrome (41241214214).

The spelling of 20031101212 in words is "twenty billion, thirty-one million, one hundred one thousand, two hundred twelve".