105318473251 has 4 divisors (see below), whose sum is σ = 108164918512. Its totient is φ = 102472027992.

The previous prime is 105318473243. The next prime is 105318473263. The reversal of 105318473251 is 152374813501.

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

It is a cyclic number.

It is not a de Polignac number, because 105318473251 - 2³ = 105318473243 is a prime.

It is a super-2 number, since 2×105318473251² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105318473201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423222575 + ... + 1423222648.

It is an arithmetic number, because the mean of its divisors is an integer number (27041229628).

Almost surely, 2^105318473251 is an apocalyptic number.

105318473251 is a deficient number, since it is larger than the sum of its proper divisors (2846445261).

105318473251 is an equidigital number, since it uses as much as digits as its factorization.

105318473251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846445260.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 105318473251 in words is "one hundred five billion, three hundred eighteen million, four hundred seventy-three thousand, two hundred fifty-one".