105124504355521 has 16 divisors (see below), whose sum is σ = 120302270098560. Its totient is φ = 89986737617280.

The previous prime is 105124504355447. The next prime is 105124504355579. The reversal of 105124504355521 is 125553405421501.

It is not a de Polignac number, because 105124504355521 - 2¹³ = 105124504347329 is a prime.

It is a super-2 number, since 2×105124504355521² (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 (105124504355021) 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, 384840430 + ... + 385113496.

It is an arithmetic number, because the mean of its divisors is an integer number (7518891881160).

Almost surely, 2^{105124504355521} is an apocalyptic number.

It is an amenable number.

105124504355521 is a deficient number, since it is larger than the sum of its proper divisors (15177765743039).

105124504355521 is an equidigital number, since it uses as much as digits as its factorization.

105124504355521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346104.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 105124504355521 in words is "one hundred five trillion, one hundred twenty-four billion, five hundred four million, three hundred fifty-five thousand, five hundred twenty-one".