190111845923 has 2 divisors, whose sum is σ = 190111845924. Its totient is φ = 190111845922.

The previous prime is 190111845919. The next prime is 190111845941. The reversal of 190111845923 is 329548111091.

It is a weak prime.

It is an emirp because it is prime and its reverse (329548111091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190111845923 - 2² = 190111845919 is a prime.

It is a super-2 number, since 2×190111845923² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190111845323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95055922961 + 95055922962.

It is an arithmetic number, because the mean of its divisors is an integer number (95055922962).

Almost surely, 2^190111845923 is an apocalyptic number.

190111845923 is a deficient number, since it is larger than the sum of its proper divisors (1).

190111845923 is an equidigital number, since it uses as much as digits as its factorization.

190111845923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 44.

The spelling of 190111845923 in words is "one hundred ninety billion, one hundred eleven million, eight hundred forty-five thousand, nine hundred twenty-three".