1320943267 has 8 divisors (see below), whose sum is σ = 1509869312. Its totient is φ = 1132072200.

The previous prime is 1320943241. The next prime is 1320943277. The reversal of 1320943267 is 7623490231.

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

It is a de Polignac number, because none of the positive numbers 2^k-1320943267 is a prime.

It is a super-2 number, since 2×1320943267² = 3489782229265266578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320943237) 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, 86842 + ... + 100912.

It is an arithmetic number, because the mean of its divisors is an integer number (188733664).

Almost surely, 2^1320943267 is an apocalyptic number.

1320943267 is a deficient number, since it is larger than the sum of its proper divisors (188926045).

1320943267 is a wasteful number, since it uses less digits than its factorization.

1320943267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27489.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 1320943267 is about 36344.7832157519. The cubic root of 1320943267 is about 1097.2225430702. Note that the first 3 decimals are identical.

The spelling of 1320943267 in words is "one billion, three hundred twenty million, nine hundred forty-three thousand, two hundred sixty-seven".