194000001011111 has 4 divisors (see below), whose sum is σ = 202434783663792. Its totient is φ = 185565218358432.

The previous prime is 194000001011099. The next prime is 194000001011123. The reversal of 194000001011111 is 111110100000491.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (194000001011099) and next prime (194000001011123).

It is a cyclic number.

It is not a de Polignac number, because 194000001011111 - 2³⁸ = 193725123104167 is a prime.

It is a super-2 number, since 2×194000001011111² (a number of 29 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 (194000001001111) 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, 4217391326306 + ... + 4217391326351.

It is an arithmetic number, because the mean of its divisors is an integer number (50608695915948).

Almost surely, 2^{194000001011111} is an apocalyptic number.

194000001011111 is a deficient number, since it is larger than the sum of its proper divisors (8434782652681).

194000001011111 is an equidigital number, since it uses as much as digits as its factorization.

194000001011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8434782652680.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 194000001011111 in words is "one hundred ninety-four trillion, one million, eleven thousand, one hundred eleven".