1323127971 has 24 divisors (see below), whose sum is σ = 2090190960. Its totient is φ = 799872000.

The previous prime is 1323127951. The next prime is 1323127979. The reversal of 1323127971 is 1797213231.

It is a happy number.

It is not a de Polignac number, because 1323127971 - 2⁷ = 1323127843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323127979) 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 in 23 ways as a sum of consecutive naturals, for example, 23035 + ... + 56363.

It is an arithmetic number, because the mean of its divisors is an integer number (87091290).

Almost surely, 2^1323127971 is an apocalyptic number.

1323127971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1323127971 is a deficient number, since it is larger than the sum of its proper divisors (767062989).

1323127971 is a wasteful number, since it uses less digits than its factorization.

1323127971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33747 (or 33744 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 1323127971 is about 36374.8260614398. The cubic root of 1323127971 is about 1097.8271075581.

The spelling of 1323127971 in words is "one billion, three hundred twenty-three million, one hundred twenty-seven thousand, nine hundred seventy-one".