103320043221 has 4 divisors (see below), whose sum is σ = 137760057632. Its totient is φ = 68880028812.

The previous prime is 103320043213. The next prime is 103320043243. The reversal of 103320043221 is 122340023301.

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 not a de Polignac number, because 103320043221 - 2³ = 103320043213 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 (103320043201) 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, 17220007201 + ... + 17220007206.

It is an arithmetic number, because the mean of its divisors is an integer number (34440014408).

Almost surely, 2^103320043221 is an apocalyptic number.

It is an amenable number.

103320043221 is a deficient number, since it is larger than the sum of its proper divisors (34440014411).

103320043221 is an equidigital number, since it uses as much as digits as its factorization.

103320043221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34440014410.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 103320043221 its reverse (122340023301), we get a palindrome (225660066522).

The spelling of 103320043221 in words is "one hundred three billion, three hundred twenty million, forty-three thousand, two hundred twenty-one".