1912100110111 has 4 divisors (see below), whose sum is σ = 1912116102192. Its totient is φ = 1912084118032.

The previous prime is 1912100110069. The next prime is 1912100110121. The reversal of 1912100110111 is 1110110012191.

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

It is a cyclic number.

It is not a de Polignac number, because 1912100110111 - 2²⁷ = 1911965892383 is a prime.

It is a super-2 number, since 2×1912100110111² (a number of 25 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 (1912100110121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7815331 + ... + 8056276.

It is an arithmetic number, because the mean of its divisors is an integer number (478029025548).

Almost surely, 2^{1912100110111} is an apocalyptic number.

1912100110111 is a deficient number, since it is larger than the sum of its proper divisors (15992081).

1912100110111 is a wasteful number, since it uses less digits than its factorization.

1912100110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15992080.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 1912100110111 in words is "one trillion, nine hundred twelve billion, one hundred million, one hundred ten thousand, one hundred eleven".