106488243821 has 4 divisors (see below), whose sum is σ = 106488904992. Its totient is φ = 106487582652.

The previous prime is 106488243781. The next prime is 106488243863. The reversal of 106488243821 is 128342884601.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 106488243821 - 2²⁶ = 106421134957 is a prime.

It is a super-2 number, since 2×106488243821² (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 (106488243221) 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, 85946 + ... + 469428.

It is an arithmetic number, because the mean of its divisors is an integer number (26622226248).

Almost surely, 2^106488243821 is an apocalyptic number.

It is an amenable number.

106488243821 is a deficient number, since it is larger than the sum of its proper divisors (661171).

106488243821 is an equidigital number, since it uses as much as digits as its factorization.

106488243821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661170.

The product of its (nonzero) digits is 589824, while the sum is 47.

The spelling of 106488243821 in words is "one hundred six billion, four hundred eighty-eight million, two hundred forty-three thousand, eight hundred twenty-one".