1331152723 has 2 divisors, whose sum is σ = 1331152724. Its totient is φ = 1331152722.

The previous prime is 1331152721. The next prime is 1331152729. The reversal of 1331152723 is 3272511331.

It is a weak prime.

It is an emirp because it is prime and its reverse (3272511331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331152723 - 2¹ = 1331152721 is a prime.

Together with 1331152721, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1331152691 and 1331152700.

It is not a weakly prime, because it can be changed into another prime (1331152721) 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, 665576361 + 665576362.

It is an arithmetic number, because the mean of its divisors is an integer number (665576362).

Almost surely, 2^1331152723 is an apocalyptic number.

1331152723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331152723 is an equidigital number, since it uses as much as digits as its factorization.

1331152723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 1331152723 is about 36484.9657119203. The cubic root of 1331152723 is about 1100.0420708427.

The spelling of 1331152723 in words is "one billion, three hundred thirty-one million, one hundred fifty-two thousand, seven hundred twenty-three".