12101023011231 has 32 divisors (see below), whose sum is σ = 22351095897600. Its totient is φ = 6286245719040.

The previous prime is 12101023011191. The next prime is 12101023011257. The reversal of 12101023011231 is 13211032010121.

12101023011231 is a `hidden beast` number, since 121 + 0 + 10 + 2 + 301 + 1 + 231 = 666.

It is not a de Polignac number, because 12101023011231 - 2⁶ = 12101023011167 is a prime.

It is a super-2 number, since 2×12101023011231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101023011331) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2910296866 + ... + 2910301023.

It is an arithmetic number, because the mean of its divisors is an integer number (698471746800).

Almost surely, 2^{12101023011231} is an apocalyptic number.

12101023011231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12101023011231 is a deficient number, since it is larger than the sum of its proper divisors (10250072886369).

12101023011231 is a wasteful number, since it uses less digits than its factorization.

12101023011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820597916 (or 5820597910 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12101023011231 its reverse (13211032010121), we get a palindrome (25312055021352).

The spelling of 12101023011231 in words is "twelve trillion, one hundred one billion, twenty-three million, eleven thousand, two hundred thirty-one".