105204352215 has 32 divisors (see below), whose sum is σ = 170839259136. Its totient is φ = 55277354880.

The previous prime is 105204352199. The next prime is 105204352217. The reversal of 105204352215 is 512253402501.

It is not a de Polignac number, because 105204352215 - 2⁴ = 105204352199 is a prime.

It is a super-2 number, since 2×105204352215² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105204352217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109434 + ... + 471576.

It is an arithmetic number, because the mean of its divisors is an integer number (5338726848).

Almost surely, 2^105204352215 is an apocalyptic number.

105204352215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105204352215 is a deficient number, since it is larger than the sum of its proper divisors (65634906921).

105204352215 is a wasteful number, since it uses less digits than its factorization.

105204352215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362439.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 105204352215 its reverse (512253402501), we get a palindrome (617457754716).

The spelling of 105204352215 in words is "one hundred five billion, two hundred four million, three hundred fifty-two thousand, two hundred fifteen".