1320011097 has 4 divisors (see below), whose sum is σ = 1760014800. Its totient is φ = 880007396.

The previous prime is 1320011083. The next prime is 1320011107. The reversal of 1320011097 is 7901100231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1320011097 - 2¹¹ = 1320009049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320016097) 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 3 ways as a sum of consecutive naturals, for example, 220001847 + ... + 220001852.

It is an arithmetic number, because the mean of its divisors is an integer number (440003700).

Almost surely, 2^1320011097 is an apocalyptic number.

It is an amenable number.

1320011097 is a deficient number, since it is larger than the sum of its proper divisors (440003703).

1320011097 is an equidigital number, since it uses as much as digits as its factorization.

1320011097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440003702.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 1320011097 is about 36331.9569662852. The cubic root of 1320011097 is about 1096.9643844627.

The spelling of 1320011097 in words is "one billion, three hundred twenty million, eleven thousand, ninety-seven".