103275808021 has 4 divisors (see below), whose sum is σ = 103278228844. Its totient is φ = 103273387200.

The previous prime is 103275808019. The next prime is 103275808033. The reversal of 103275808021 is 120808572301.

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 70073501796 + 33202306225 = 264714^2 + 182215^2 .

It is a cyclic number.

It is not a de Polignac number, because 103275808021 - 2¹ = 103275808019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103275808091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145250 + ... + 1232131.

It is an arithmetic number, because the mean of its divisors is an integer number (25819557211).

Almost surely, 2^103275808021 is an apocalyptic number.

It is an amenable number.

103275808021 is a deficient number, since it is larger than the sum of its proper divisors (2420823).

103275808021 is an equidigital number, since it uses as much as digits as its factorization.

103275808021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420822.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 103275808021 in words is "one hundred three billion, two hundred seventy-five million, eight hundred eight thousand, twenty-one".