12011013121031 has 2 divisors, whose sum is σ = 12011013121032. Its totient is φ = 12011013121030.

The previous prime is 12011013121007. The next prime is 12011013121033. The reversal of 12011013121031 is 13012131011021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011013121031 - 2²² = 12011008926727 is a prime.

It is a super-2 number, since 2×12011013121031² (a number of 27 digits) contains 22 as substring.

Together with 12011013121033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011013121033) by changing a digit.

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 as a sum of consecutive naturals, namely, 6005506560515 + 6005506560516.

It is an arithmetic number, because the mean of its divisors is an integer number (6005506560516).

Almost surely, 2^{12011013121031} is an apocalyptic number.

12011013121031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011013121031 is an equidigital number, since it uses as much as digits as its factorization.

12011013121031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12011013121031 its reverse (13012131011021), we get a palindrome (25023144132052).

The spelling of 12011013121031 in words is "twelve trillion, eleven billion, thirteen million, one hundred twenty-one thousand, thirty-one".