1331312953 has 2 divisors, whose sum is σ = 1331312954. Its totient is φ = 1331312952.

The previous prime is 1331312951. The next prime is 1331313013. The reversal of 1331312953 is 3592131331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1289671744 + 41641209 = 35912^2 + 6453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331312953 - 2¹ = 1331312951 is a prime.

Together with 1331312951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1331312951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665656476 + 665656477.

It is an arithmetic number, because the mean of its divisors is an integer number (665656477).

Almost surely, 2^1331312953 is an apocalyptic number.

It is an amenable number.

1331312953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331312953 is an equidigital number, since it uses as much as digits as its factorization.

1331312953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 31.

The square root of 1331312953 is about 36487.1614818144. The cubic root of 1331312953 is about 1100.0862061916.

The spelling of 1331312953 in words is "one billion, three hundred thirty-one million, three hundred twelve thousand, nine hundred fifty-three".