11331123112147 has 2 divisors, whose sum is σ = 11331123112148. Its totient is φ = 11331123112146.

The previous prime is 11331123112087. The next prime is 11331123112151. The reversal of 11331123112147 is 74121132113311.

11331123112147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11331123112147 - 2⁷ = 11331123112019 is a prime.

It is not a weakly prime, because it can be changed into another prime (11331123110147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665561556073 + 5665561556074.

It is an arithmetic number, because the mean of its divisors is an integer number (5665561556074).

Almost surely, 2^{11331123112147} is an apocalyptic number.

11331123112147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331123112147 is an equidigital number, since it uses as much as digits as its factorization.

11331123112147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

Adding to 11331123112147 its reverse (74121132113311), we get a palindrome (85452255225458).

The spelling of 11331123112147 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty-three million, one hundred twelve thousand, one hundred forty-seven".