107528321281 has 4 divisors (see below), whose sum is σ = 109816157952. Its totient is φ = 105240484612.

The previous prime is 107528321261. The next prime is 107528321297. The reversal of 107528321281 is 182123825701.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-107528321281 is a prime.

It is a super-2 number, since 2×107528321281² (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 (107528321231) 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, 1143918265 + ... + 1143918358.

It is an arithmetic number, because the mean of its divisors is an integer number (27454039488).

Almost surely, 2^107528321281 is an apocalyptic number.

It is an amenable number.

107528321281 is a deficient number, since it is larger than the sum of its proper divisors (2287836671).

107528321281 is an equidigital number, since it uses as much as digits as its factorization.

107528321281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287836670.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 107528321281 in words is "one hundred seven billion, five hundred twenty-eight million, three hundred twenty-one thousand, two hundred eighty-one".