20097113 has 2 divisors, whose sum is σ = 20097114. Its totient is φ = 20097112.

The previous prime is 20097109. The next prime is 20097137. The reversal of 20097113 is 31179002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10837264 + 9259849 = 3292^2 + 3043^2 .

It is a cyclic number.

It is not a de Polignac number, because 20097113 - 2² = 20097109 is a prime.

It is not a weakly prime, because it can be changed into another prime (20097013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10048556 + 10048557.

It is an arithmetic number, because the mean of its divisors is an integer number (10048557).

Almost surely, 2^20097113 is an apocalyptic number.

It is an amenable number.

20097113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20097113 is an equidigital number, since it uses as much as digits as its factorization.

20097113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 20097113 is about 4482.9803702448. The cubic root of 20097113 is about 271.8803945378.

The spelling of 20097113 in words is "twenty million, ninety-seven thousand, one hundred thirteen".