100105111050091 has 8 divisors (see below), whose sum is σ = 121135596564960. Its totient is φ = 80757064376448.

The previous prime is 100105111050059. The next prime is 100105111050221. The reversal of 100105111050091 is 190050111501001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100105111050091 - 2⁵ = 100105111050059 is a prime.

It is a super-2 number, since 2×100105111050091² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100105111050691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420609710176 + ... + 420609710413.

It is an arithmetic number, because the mean of its divisors is an integer number (15141949570620).

Almost surely, 2^{100105111050091} is an apocalyptic number.

100105111050091 is a deficient number, since it is larger than the sum of its proper divisors (21030485514869).

100105111050091 is an equidigital number, since it uses as much as digits as its factorization.

100105111050091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841219420613.

The product of its (nonzero) digits is 225, while the sum is 25.

Adding to 100105111050091 its reverse (190050111501001), we get a palindrome (290155222551092).

The spelling of 100105111050091 in words is "one hundred trillion, one hundred five billion, one hundred eleven million, fifty thousand, ninety-one".