106120406305 has 4 divisors (see below), whose sum is σ = 127344487572. Its totient is φ = 84896325040.

The previous prime is 106120406299. The next prime is 106120406323. The reversal of 106120406305 is 503604021601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503604021601 = 47 ⋅10714979183.

It can be written as a sum of positive squares in 2 ways, for example, as 42978265344 + 63142140961 = 207312^2 + 251281^2 .

It is not a de Polignac number, because 106120406305 - 2⁷ = 106120406177 is a prime.

It is a super-2 number, since 2×106120406305² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10612040626 + ... + 10612040635.

It is an arithmetic number, because the mean of its divisors is an integer number (31836121893).

Almost surely, 2^106120406305 is an apocalyptic number.

It is an amenable number.

106120406305 is a deficient number, since it is larger than the sum of its proper divisors (21224081267).

106120406305 is an equidigital number, since it uses as much as digits as its factorization.

106120406305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21224081266.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 106120406305 its reverse (503604021601), we get a palindrome (609724427906).

The spelling of 106120406305 in words is "one hundred six billion, one hundred twenty million, four hundred six thousand, three hundred five".