1331312299 has 2 divisors, whose sum is σ = 1331312300. Its totient is φ = 1331312298.

The previous prime is 1331312287. The next prime is 1331312303. The reversal of 1331312299 is 9922131331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331312299 - 2¹¹ = 1331310251 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331312699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665656149 + 665656150.

It is an arithmetic number, because the mean of its divisors is an integer number (665656150).

Almost surely, 2^1331312299 is an apocalyptic number.

1331312299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331312299 is an equidigital number, since it uses as much as digits as its factorization.

1331312299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 34.

The square root of 1331312299 is about 36487.1525197569. The cubic root of 1331312299 is about 1100.0860260545.

The spelling of 1331312299 in words is "one billion, three hundred thirty-one million, three hundred twelve thousand, two hundred ninety-nine".