105454121005 has 32 divisors (see below), whose sum is σ = 134393011200. Its totient is φ = 79213635072.

The previous prime is 105454120987. The next prime is 105454121021. The reversal of 105454121005 is 500121454501.

It is not a de Polignac number, because 105454121005 - 2²⁷ = 105319903277 is a prime.

It is a super-2 number, since 2×105454121005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4840497 + ... + 4862233.

It is an arithmetic number, because the mean of its divisors is an integer number (4199781600).

Almost surely, 2^105454121005 is an apocalyptic number.

It is an amenable number.

105454121005 is a deficient number, since it is larger than the sum of its proper divisors (28938890195).

105454121005 is a wasteful number, since it uses less digits than its factorization.

105454121005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22213.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 105454121005 its reverse (500121454501), we get a palindrome (605575575506).

The spelling of 105454121005 in words is "one hundred five billion, four hundred fifty-four million, one hundred twenty-one thousand, five".