103320110021 has 4 divisors (see below), whose sum is σ = 103334092812. Its totient is φ = 103306127232.

The previous prime is 103320110009. The next prime is 103320110039. The reversal of 103320110021 is 120011023301.

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 20589093121 + 82731016900 = 143489^2 + 287630^2 .

It is a cyclic number.

It is not a de Polignac number, because 103320110021 - 2⁶ = 103320109957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103320109978 and 103320110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103320110071) 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, 6980306 + ... + 6995091.

It is an arithmetic number, because the mean of its divisors is an integer number (25833523203).

Almost surely, 2^103320110021 is an apocalyptic number.

It is an amenable number.

103320110021 is a deficient number, since it is larger than the sum of its proper divisors (13982791).

103320110021 is an equidigital number, since it uses as much as digits as its factorization.

103320110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13982790.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 103320110021 its reverse (120011023301), we get a palindrome (223331133322).

The spelling of 103320110021 in words is "one hundred three billion, three hundred twenty million, one hundred ten thousand, twenty-one".