103444331321 has 4 divisors (see below), whose sum is σ = 103726196352. Its totient is φ = 103162466292.

The previous prime is 103444331299. The next prime is 103444331351. The reversal of 103444331321 is 123133444301.

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 not a de Polignac number, because 103444331321 - 2²⁶ = 103377222457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103444331351) 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, 140931965 + ... + 140932698.

It is an arithmetic number, because the mean of its divisors is an integer number (25931549088).

Almost surely, 2^103444331321 is an apocalyptic number.

It is an amenable number.

103444331321 is a deficient number, since it is larger than the sum of its proper divisors (281865031).

103444331321 is an equidigital number, since it uses as much as digits as its factorization.

103444331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281865030.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 103444331321 its reverse (123133444301), we get a palindrome (226577775622).

The spelling of 103444331321 in words is "one hundred three billion, four hundred forty-four million, three hundred thirty-one thousand, three hundred twenty-one".