106312608505 has 4 divisors (see below), whose sum is σ = 127575130212. Its totient is φ = 85050086800.

The previous prime is 106312608487. The next prime is 106312608529. The reversal of 106312608505 is 505806213601.

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 72109435024 + 34203173481 = 268532^2 + 184941^2 .

It is not a de Polignac number, because 106312608505 - 2¹⁷ = 106312477433 is a prime.

It is a super-2 number, since 2×106312608505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10631260846 + ... + 10631260855.

It is an arithmetic number, because the mean of its divisors is an integer number (31893782553).

Almost surely, 2^106312608505 is an apocalyptic number.

It is an amenable number.

106312608505 is a deficient number, since it is larger than the sum of its proper divisors (21262521707).

106312608505 is an equidigital number, since it uses as much as digits as its factorization.

106312608505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21262521706.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 106312608505 in words is "one hundred six billion, three hundred twelve million, six hundred eight thousand, five hundred five".