10100919191 has 6 divisors (see below), whose sum is σ = 11102663376. Its totient is φ = 9182653700.

The previous prime is 10100919181. The next prime is 10100919197. The reversal of 10100919191 is 19191900101.

It is a de Polignac number, because none of the positive numbers 2^k-10100919191 is a prime.

It is a super-2 number, since 2×10100919191² (a number of 21 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 (10100919197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41739215 + ... + 41739456.

It is an arithmetic number, because the mean of its divisors is an integer number (1850443896).

Almost surely, 2^10100919191 is an apocalyptic number.

10100919191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10100919191 is a deficient number, since it is larger than the sum of its proper divisors (1001744185).

10100919191 is an equidigital number, since it uses as much as digits as its factorization.

10100919191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83478693 (or 83478682 counting only the distinct ones).

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

The spelling of 10100919191 in words is "ten billion, one hundred million, nine hundred nineteen thousand, one hundred ninety-one".