1131232321027 has 2 divisors, whose sum is σ = 1131232321028. Its totient is φ = 1131232321026.

The previous prime is 1131232320997. The next prime is 1131232321033. The reversal of 1131232321027 is 7201232321311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131232321027 is a prime.

It is a super-2 number, since 2×1131232321027² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131232320986 and 1131232321004.

It is not a weakly prime, because it can be changed into another prime (1131232321627) 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, 565616160513 + 565616160514.

It is an arithmetic number, because the mean of its divisors is an integer number (565616160514).

Almost surely, 2^{1131232321027} is an apocalyptic number.

1131232321027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131232321027 is an equidigital number, since it uses as much as digits as its factorization.

1131232321027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 1131232321027 its reverse (7201232321311), we get a palindrome (8332464642338).

The spelling of 1131232321027 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, twenty-seven".