100505460091 has 4 divisors (see below), whose sum is σ = 100519859952. Its totient is φ = 100491060232.

The previous prime is 100505460067. The next prime is 100505460101. The reversal of 100505460091 is 190064505001.

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

It is a cyclic number.

It is not a de Polignac number, because 100505460091 - 2⁵ = 100505460059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100505560091) 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, 7189456 + ... + 7203421.

It is an arithmetic number, because the mean of its divisors is an integer number (25129964988).

Almost surely, 2^100505460091 is an apocalyptic number.

100505460091 is a deficient number, since it is larger than the sum of its proper divisors (14399861).

100505460091 is an equidigital number, since it uses as much as digits as its factorization.

100505460091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14399860.

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 100505460091 its reverse (190064505001), we get a palindrome (290569965092).

The spelling of 100505460091 in words is "one hundred billion, five hundred five million, four hundred sixty thousand, ninety-one".