190190091011 has 4 divisors (see below), whose sum is σ = 190801635024. Its totient is φ = 189578547000.

The previous prime is 190190091001. The next prime is 190190091019. The reversal of 190190091011 is 110190091091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110190091091 = 2131 ⋅51708161.

It is a cyclic number.

It is not a de Polignac number, because 190190091011 - 2²² = 190185896707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190190091019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305771540 + ... + 305772161.

It is an arithmetic number, because the mean of its divisors is an integer number (47700408756).

Almost surely, 2^190190091011 is an apocalyptic number.

190190091011 is a deficient number, since it is larger than the sum of its proper divisors (611544013).

190190091011 is an equidigital number, since it uses as much as digits as its factorization.

190190091011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611544012.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 190190091011 in words is "one hundred ninety billion, one hundred ninety million, ninety-one thousand, eleven".