1331012117 has 2 divisors, whose sum is σ = 1331012118. Its totient is φ = 1331012116.

The previous prime is 1331012113. The next prime is 1331012119. The reversal of 1331012117 is 7112101331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1258404676 + 72607441 = 35474^2 + 8521^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331012117 - 2² = 1331012113 is a prime.

Together with 1331012119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331012113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665506058 + 665506059.

It is an arithmetic number, because the mean of its divisors is an integer number (665506059).

Almost surely, 2^1331012117 is an apocalyptic number.

It is an amenable number.

1331012117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331012117 is an equidigital number, since it uses as much as digits as its factorization.

1331012117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1331012117 is about 36483.0387577570. The cubic root of 1331012117 is about 1100.0033380064.

Adding to 1331012117 its reverse (7112101331), we get a palindrome (8443113448).

The spelling of 1331012117 in words is "one billion, three hundred thirty-one million, twelve thousand, one hundred seventeen".