10918200000091 has 4 divisors (see below), whose sum is σ = 10967160538432. Its totient is φ = 10869239461752.

The previous prime is 10918200000077. The next prime is 10918200000121. The reversal of 10918200000091 is 19000000281901.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10918200000091 is a prime.

It is a super-2 number, since 2×10918200000091² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10918199999999 and 10918200000062.

It is not an unprimeable number, because it can be changed into a prime (10918200000011) 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, 24480268836 + ... + 24480269281.

It is an arithmetic number, because the mean of its divisors is an integer number (2741790134608).

Almost surely, 2^{10918200000091} is an apocalyptic number.

10918200000091 is a deficient number, since it is larger than the sum of its proper divisors (48960538341).

10918200000091 is an equidigital number, since it uses as much as digits as its factorization.

10918200000091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48960538340.

The product of its (nonzero) digits is 1296, while the sum is 31.

Adding to 10918200000091 its reverse (19000000281901), we get a palindrome (29918200281992).

The spelling of 10918200000091 in words is "ten trillion, nine hundred eighteen billion, two hundred million, ninety-one", and thus it is an aban number.