1331026127 has 2 divisors, whose sum is σ = 1331026128. Its totient is φ = 1331026126.

The previous prime is 1331026117. The next prime is 1331026157. The reversal of 1331026127 is 7216201331.

It is a weak prime.

It is an emirp because it is prime and its reverse (7216201331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331026127 - 2⁶ = 1331026063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331026096 and 1331026105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331026117) 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, 665513063 + 665513064.

It is an arithmetic number, because the mean of its divisors is an integer number (665513064).

Almost surely, 2^1331026127 is an apocalyptic number.

1331026127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331026127 is an equidigital number, since it uses as much as digits as its factorization.

1331026127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1331026127 is about 36483.2307642840. The cubic root of 1331026127 is about 1100.0071974736.

Adding to 1331026127 its reverse (7216201331), we get a palindrome (8547227458).

The spelling of 1331026127 in words is "one billion, three hundred thirty-one million, twenty-six thousand, one hundred twenty-seven".