103011011191 has 12 divisors (see below), whose sum is σ = 118149894576. Its totient is φ = 89574789920.

The previous prime is 103011011189. The next prime is 103011011219. The reversal of 103011011191 is 191110110301.

It is a happy number.

It is not a de Polignac number, because 103011011191 - 2¹ = 103011011189 is a prime.

It is a super-2 number, since 2×103011011191² (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 (103011011141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18504406 + ... + 18509971.

It is an arithmetic number, because the mean of its divisors is an integer number (9845824548).

Almost surely, 2^103011011191 is an apocalyptic number.

103011011191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103011011191 is a deficient number, since it is larger than the sum of its proper divisors (15138883385).

103011011191 is a wasteful number, since it uses less digits than its factorization.

103011011191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37014422 (or 37014411 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 19.

Adding to 103011011191 its reverse (191110110301), we get a palindrome (294121121492).

The spelling of 103011011191 in words is "one hundred three billion, eleven million, eleven thousand, one hundred ninety-one".