634101104111 has 4 divisors (see below), whose sum is σ = 634921416792. Its totient is φ = 633280791432.

The previous prime is 634101104093. The next prime is 634101104113. The reversal of 634101104111 is 111401101436.

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-634101104111 is a prime.

It is a super-2 number, since 2×634101104111² (a number of 24 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 (634101104113) 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, 410155181 + ... + 410156726.

It is an arithmetic number, because the mean of its divisors is an integer number (158730354198).

Almost surely, 2^634101104111 is an apocalyptic number.

634101104111 is a deficient number, since it is larger than the sum of its proper divisors (820312681).

634101104111 is an equidigital number, since it uses as much as digits as its factorization.

634101104111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820312680.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 634101104111 its reverse (111401101436), we get a palindrome (745502205547).

The spelling of 634101104111 in words is "six hundred thirty-four billion, one hundred one million, one hundred four thousand, one hundred eleven".