1201980347 has 2 divisors, whose sum is σ = 1201980348. Its totient is φ = 1201980346.

The previous prime is 1201980301. The next prime is 1201980349. The reversal of 1201980347 is 7430891021.

It is a strong prime.

It is an emirp because it is prime and its reverse (7430891021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201980347 - 2¹⁰ = 1201979323 is a prime.

Together with 1201980349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1201980349) 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 as a sum of consecutive naturals, namely, 600990173 + 600990174.

It is an arithmetic number, because the mean of its divisors is an integer number (600990174).

Almost surely, 2^1201980347 is an apocalyptic number.

1201980347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201980347 is an equidigital number, since it uses as much as digits as its factorization.

1201980347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1201980347 is about 34669.5882150336. The cubic root of 1201980347 is about 1063.2428125517.

The spelling of 1201980347 in words is "one billion, two hundred one million, nine hundred eighty thousand, three hundred forty-seven".