220113191 has 2 divisors, whose sum is σ = 220113192. Its totient is φ = 220113190.

The previous prime is 220113139. The next prime is 220113199. The reversal of 220113191 is 191311022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220113191 is a prime.

It is a super-3 number, since 3×220113191³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220113199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056595 + 110056596.

It is an arithmetic number, because the mean of its divisors is an integer number (110056596).

Almost surely, 2^220113191 is an apocalyptic number.

220113191 is a deficient number, since it is larger than the sum of its proper divisors (1).

220113191 is an equidigital number, since it uses as much as digits as its factorization.

220113191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 220113191 is about 14836.2121513545. The cubic root of 220113191 is about 603.7845881477.

The spelling of 220113191 in words is "two hundred twenty million, one hundred thirteen thousand, one hundred ninety-one".