105355515913 has 4 divisors (see below), whose sum is σ = 111552899220. Its totient is φ = 99158132608.

The previous prime is 105355515893. The next prime is 105355515943. The reversal of 105355515913 is 319515553501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61786050624 + 43569465289 = 248568^2 + 208733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105355515913 is a prime.

It is a super-2 number, since 2×105355515913² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105355515913.

It is not an unprimeable number, because it can be changed into a prime (105355515943) 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, 3098691628 + ... + 3098691661.

It is an arithmetic number, because the mean of its divisors is an integer number (27888224805).

Almost surely, 2^105355515913 is an apocalyptic number.

It is an amenable number.

105355515913 is a deficient number, since it is larger than the sum of its proper divisors (6197383307).

105355515913 is an equidigital number, since it uses as much as digits as its factorization.

105355515913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197383306.

The product of its (nonzero) digits is 253125, while the sum is 43.

The spelling of 105355515913 in words is "one hundred five billion, three hundred fifty-five million, five hundred fifteen thousand, nine hundred thirteen".