11404020197 has 2 divisors, whose sum is σ = 11404020198. Its totient is φ = 11404020196.

The previous prime is 11404020181. The next prime is 11404020217. The reversal of 11404020197 is 79102040411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11033611681 + 370408516 = 105041^2 + 19246^2 .

It is an emirp because it is prime and its reverse (79102040411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11404020197 - 2⁴ = 11404020181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11404020107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5702010098 + 5702010099.

It is an arithmetic number, because the mean of its divisors is an integer number (5702010099).

Almost surely, 2^11404020197 is an apocalyptic number.

It is an amenable number.

11404020197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11404020197 is an equidigital number, since it uses as much as digits as its factorization.

11404020197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 11404020197 in words is "eleven billion, four hundred four million, twenty thousand, one hundred ninety-seven".