10131113121212 has 12 divisors (see below), whose sum is σ = 17856997948440. Its totient is φ = 5029113707376.

The previous prime is 10131113121191. The next prime is 10131113121247. The reversal of 10131113121212 is 21212131113101.

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 3 ways as a sum of consecutive naturals, for example, 9110712683 + ... + 9110713794.

It is an arithmetic number, because the mean of its divisors is an integer number (1488083162370).

Almost surely, 2^{10131113121212} is an apocalyptic number.

It is an amenable number.

10131113121212 is a deficient number, since it is larger than the sum of its proper divisors (7725884827228).

10131113121212 is a wasteful number, since it uses less digits than its factorization.

10131113121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18221426620 (or 18221426618 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 10131113121212 its reverse (21212131113101), we get a palindrome (31343244234313).

The spelling of 10131113121212 in words is "ten trillion, one hundred thirty-one billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred twelve".