12011113211031 has 32 divisors (see below), whose sum is σ = 19412372851200. Its totient is φ = 7279285285440.

The previous prime is 12011113210991. The next prime is 12011113211057. The reversal of 12011113211031 is 13011231111021.

12011113211031 is a `hidden beast` number, since 1 + 201 + 111 + 321 + 1 + 0 + 31 = 666.

12011113211031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12011113211031 - 2⁷ = 12011113210903 is a prime.

It is a super-3 number, since 3×12011113211031³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12011113210995 and 12011113211013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011113211231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12281350 + ... + 13223228.

It is an arithmetic number, because the mean of its divisors is an integer number (606636651600).

Almost surely, 2^{12011113211031} is an apocalyptic number.

12011113211031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12011113211031 is a deficient number, since it is larger than the sum of its proper divisors (7401259640169).

12011113211031 is a wasteful number, since it uses less digits than its factorization.

12011113211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984836 (or 984830 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 12011113211031 its reverse (13011231111021), we get a palindrome (25022344322052).

The spelling of 12011113211031 in words is "twelve trillion, eleven billion, one hundred thirteen million, two hundred eleven thousand, thirty-one".