20113031123212 has 96 divisors (see below), whose sum is σ = 38300524859520. Its totient is φ = 9206469120000.

The previous prime is 20113031123201. The next prime is 20113031123239. The reversal of 20113031123212 is 21232113031102.

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 31 ways as a sum of consecutive naturals, for example, 351468762 + ... + 351525982.

It is an arithmetic number, because the mean of its divisors is an integer number (398963800620).

Almost surely, 2^{20113031123212} is an apocalyptic number.

It is an amenable number.

20113031123212 is a deficient number, since it is larger than the sum of its proper divisors (18187493736308).

20113031123212 is a wasteful number, since it uses less digits than its factorization.

20113031123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58243 (or 58241 counting only the distinct ones).

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

Adding to 20113031123212 its reverse (21232113031102), we get a palindrome (41345144154314).

The spelling of 20113031123212 in words is "twenty trillion, one hundred thirteen billion, thirty-one million, one hundred twenty-three thousand, two hundred twelve".