91102131112 has 16 divisors (see below), whose sum is σ = 172383621300. Its totient is φ = 45133165440.

The previous prime is 91102131101. The next prime is 91102131121. The reversal of 91102131112 is 21113120119.

It can be written as a sum of positive squares in 2 ways, for example, as 90404854276 + 697276836 = 300674^2 + 26406^2 .

It is a super-3 number, since 3×91102131112³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52236589 + ... + 52238332.

Almost surely, 2^91102131112 is an apocalyptic number.

It is an amenable number.

91102131112 is a deficient number, since it is larger than the sum of its proper divisors (81281490188).

91102131112 is a wasteful number, since it uses less digits than its factorization.

91102131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104475036 (or 104475032 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 91102131112 in words is "ninety-one billion, one hundred two million, one hundred thirty-one thousand, one hundred twelve".