1320267971 has 8 divisors (see below), whose sum is σ = 1453754304. Its totient is φ = 1189025320.

The previous prime is 1320267967. The next prime is 1320267979. The reversal of 1320267971 is 1797620231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320267971 - 2² = 1320267967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320267979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559685 + ... + 562038.

It is an arithmetic number, because the mean of its divisors is an integer number (181719288).

Almost surely, 2^1320267971 is an apocalyptic number.

1320267971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1320267971 is a deficient number, since it is larger than the sum of its proper divisors (133486333).

1320267971 is a wasteful number, since it uses less digits than its factorization.

1320267971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121841.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 1320267971 is about 36335.4918915377. The cubic root of 1320267971 is about 1097.0355362264.

The spelling of 1320267971 in words is "one billion, three hundred twenty million, two hundred sixty-seven thousand, nine hundred seventy-one".