320100997 has 2 divisors, whose sum is σ = 320100998. Its totient is φ = 320100996.

The previous prime is 320100971. The next prime is 320101003. The reversal of 320100997 is 799001023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216855076 + 103245921 = 14726^2 + 10161^2 .

It is a cyclic number.

It is not a de Polignac number, because 320100997 - 2¹¹ = 320098949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320100197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160050498 + 160050499.

It is an arithmetic number, because the mean of its divisors is an integer number (160050499).

Almost surely, 2^320100997 is an apocalyptic number.

It is an amenable number.

320100997 is a deficient number, since it is larger than the sum of its proper divisors (1).

320100997 is an equidigital number, since it uses as much as digits as its factorization.

320100997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 320100997 is about 17891.3665492606. The cubic root of 320100997 is about 684.0623304518.

The spelling of 320100997 in words is "three hundred twenty million, one hundred thousand, nine hundred ninety-seven".