1265327323 has 32 divisors (see below), whose sum is σ = 1478264256. Its totient is φ = 1072631808.

The previous prime is 1265327321. The next prime is 1265327339. The reversal of 1265327323 is 3237235621.

It is a cyclic number.

It is not a de Polignac number, because 1265327323 - 2¹ = 1265327321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1265327321) 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 in 31 ways as a sum of consecutive naturals, for example, 1725865 + ... + 1726597.

It is an arithmetic number, because the mean of its divisors is an integer number (46195758).

Almost surely, 2^1265327323 is an apocalyptic number.

1265327323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1265327323 is a deficient number, since it is larger than the sum of its proper divisors (212936933).

1265327323 is a wasteful number, since it uses less digits than its factorization.

1265327323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943.

The product of its digits is 45360, while the sum is 34.

The square root of 1265327323 is about 35571.4397094073. The cubic root of 1265327323 is about 1081.6023662364.

The spelling of 1265327323 in words is "one billion, two hundred sixty-five million, three hundred twenty-seven thousand, three hundred twenty-three".