105561302863 has 4 divisors (see below), whose sum is σ = 105563109600. Its totient is φ = 105559496128.

The previous prime is 105561302809. The next prime is 105561302879. The reversal of 105561302863 is 368203165501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368203165501 = 1483 ⋅248282647.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105561302863 is a prime.

It is a super-2 number, since 2×105561302863² (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 (105561302263) 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, 812695 + ... + 933592.

It is an arithmetic number, because the mean of its divisors is an integer number (26390777400).

Almost surely, 2^105561302863 is an apocalyptic number.

105561302863 is a deficient number, since it is larger than the sum of its proper divisors (1806737).

105561302863 is an equidigital number, since it uses as much as digits as its factorization.

105561302863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806736.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 105561302863 in words is "one hundred five billion, five hundred sixty-one million, three hundred two thousand, eight hundred sixty-three".