11311011421427 has 2 divisors, whose sum is σ = 11311011421428. Its totient is φ = 11311011421426.

The previous prime is 11311011421387. The next prime is 11311011421483. The reversal of 11311011421427 is 72412411011311.

11311011421427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11311011421427 - 2¹² = 11311011417331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11311011421427.

It is not a weakly prime, because it can be changed into another prime (11311011421027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655505710713 + 5655505710714.

It is an arithmetic number, because the mean of its divisors is an integer number (5655505710714).

Almost surely, 2^{11311011421427} is an apocalyptic number.

11311011421427 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311011421427 is an equidigital number, since it uses as much as digits as its factorization.

11311011421427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 29.

Adding to 11311011421427 its reverse (72412411011311), we get a palindrome (83723422432738).

The spelling of 11311011421427 in words is "eleven trillion, three hundred eleven billion, eleven million, four hundred twenty-one thousand, four hundred twenty-seven".