190090110101 has 4 divisors (see below), whose sum is σ = 190238272032. Its totient is φ = 189941948172.

The previous prime is 190090110097. The next prime is 190090110137. The reversal of 190090110101 is 101011090091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101011090091 = 31 ⋅3258422261.

It is a cyclic number.

It is not a de Polignac number, because 190090110101 - 2² = 190090110097 is a prime.

It is a super-2 number, since 2×190090110101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190090110701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74079041 + ... + 74081606.

It is an arithmetic number, because the mean of its divisors is an integer number (47559568008).

Almost surely, 2^190090110101 is an apocalyptic number.

It is an amenable number.

190090110101 is a deficient number, since it is larger than the sum of its proper divisors (148161931).

190090110101 is a wasteful number, since it uses less digits than its factorization.

190090110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148161930.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 190090110101 in words is "one hundred ninety billion, ninety million, one hundred ten thousand, one hundred one".