105210245543 has 16 divisors (see below), whose sum is σ = 114086702016. Its totient is φ = 96446073600.

The previous prime is 105210245531. The next prime is 105210245563. The reversal of 105210245543 is 345542012501.

It is a cyclic number.

It is not a de Polignac number, because 105210245543 - 2²² = 105206051239 is a prime.

It is a super-2 number, since 2×105210245543² (a number of 23 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 (105210245563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10196555 + ... + 10206867.

It is an arithmetic number, because the mean of its divisors is an integer number (7130418876).

Almost surely, 2^105210245543 is an apocalyptic number.

105210245543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

105210245543 is a deficient number, since it is larger than the sum of its proper divisors (8876456473).

105210245543 is a wasteful number, since it uses less digits than its factorization.

105210245543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15674.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 105210245543 in words is "one hundred five billion, two hundred ten million, two hundred forty-five thousand, five hundred forty-three".