188445120223 has 2 divisors, whose sum is σ = 188445120224. Its totient is φ = 188445120222.

The previous prime is 188445120191. The next prime is 188445120263. The reversal of 188445120223 is 322021544881.

It is a happy number.

It is an a-pointer prime, because the next prime (188445120263) can be obtained adding 188445120223 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 188445120223 - 2⁵ = 188445120191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188445120263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94222560111 + 94222560112.

It is an arithmetic number, because the mean of its divisors is an integer number (94222560112).

Almost surely, 2^188445120223 is an apocalyptic number.

188445120223 is a deficient number, since it is larger than the sum of its proper divisors (1).

188445120223 is an equidigital number, since it uses as much as digits as its factorization.

188445120223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122880, while the sum is 40.

The spelling of 188445120223 in words is "one hundred eighty-eight billion, four hundred forty-five million, one hundred twenty thousand, two hundred twenty-three".