1320210197 has 4 divisors (see below), whose sum is σ = 1320684000. Its totient is φ = 1319736396.

The previous prime is 1320210169. The next prime is 1320210211. The reversal of 1320210197 is 7910120231.

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 1320210197 - 2²² = 1316015893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320210107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232697 + ... + 238302.

It is an arithmetic number, because the mean of its divisors is an integer number (330171000).

Almost surely, 2^1320210197 is an apocalyptic number.

It is an amenable number.

1320210197 is a deficient number, since it is larger than the sum of its proper divisors (473803).

1320210197 is an equidigital number, since it uses as much as digits as its factorization.

1320210197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473802.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1320210197 is about 36334.6968750257. The cubic root of 1320210197 is about 1097.0195341579.

The spelling of 1320210197 in words is "one billion, three hundred twenty million, two hundred ten thousand, one hundred ninety-seven".