1320112397 has 2 divisors, whose sum is σ = 1320112398. Its totient is φ = 1320112396.

The previous prime is 1320112333. The next prime is 1320112399. The reversal of 1320112397 is 7932110231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1225420036 + 94692361 = 35006^2 + 9731^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320112397 - 2⁶ = 1320112333 is a prime.

Together with 1320112399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320112399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660056198 + 660056199.

It is an arithmetic number, because the mean of its divisors is an integer number (660056199).

Almost surely, 2^1320112397 is an apocalyptic number.

It is an amenable number.

1320112397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320112397 is an equidigital number, since it uses as much as digits as its factorization.

1320112397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1320112397 is about 36333.3510290477. The cubic root of 1320112397 is about 1096.9924447444.

The spelling of 1320112397 in words is "one billion, three hundred twenty million, one hundred twelve thousand, three hundred ninety-seven".