11331321321031 has 2 divisors, whose sum is σ = 11331321321032. Its totient is φ = 11331321321030.

The previous prime is 11331321320981. The next prime is 11331321321077. The reversal of 11331321321031 is 13012312313311.

11331321321031 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 11331321321031 - 2⁹ = 11331321320519 is a prime.

It is a super-2 number, since 2×11331321321031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11331321320987 and 11331321321005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331321301031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665660660515 + 5665660660516.

It is an arithmetic number, because the mean of its divisors is an integer number (5665660660516).

Almost surely, 2^{11331321321031} is an apocalyptic number.

11331321321031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331321321031 is an equidigital number, since it uses as much as digits as its factorization.

11331321321031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 11331321321031 its reverse (13012312313311), we get a palindrome (24343633634342).

The spelling of 11331321321031 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty-one million, three hundred twenty-one thousand, thirty-one".