106728486121 has 4 divisors (see below), whose sum is σ = 110171340544. Its totient is φ = 103285631700.

The previous prime is 106728486119. The next prime is 106728486133. The reversal of 106728486121 is 121684827601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106728486121 - 2¹ = 106728486119 is a prime.

It is a super-2 number, since 2×106728486121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106728486181) by changing a digit.

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, 1721427165 + ... + 1721427226.

It is an arithmetic number, because the mean of its divisors is an integer number (27542835136).

Almost surely, 2^106728486121 is an apocalyptic number.

It is an amenable number.

106728486121 is a deficient number, since it is larger than the sum of its proper divisors (3442854423).

106728486121 is an equidigital number, since it uses as much as digits as its factorization.

106728486121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442854422.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 106728486121 in words is "one hundred six billion, seven hundred twenty-eight million, four hundred eighty-six thousand, one hundred twenty-one".