103105302321 has 64 divisors (see below), whose sum is σ = 166808729600. Its totient is φ = 55336628736.

The previous prime is 103105302319. The next prime is 103105302329. The reversal of 103105302321 is 123203501301.

It is not a de Polignac number, because 103105302321 - 2¹ = 103105302319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103105302329) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29720175 + ... + 29723643.

It is an arithmetic number, because the mean of its divisors is an integer number (2606386400).

Almost surely, 2^103105302321 is an apocalyptic number.

It is an amenable number.

103105302321 is a deficient number, since it is larger than the sum of its proper divisors (63703427279).

103105302321 is a wasteful number, since it uses less digits than its factorization.

103105302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 103105302321 its reverse (123203501301), we get a palindrome (226308803622).

The spelling of 103105302321 in words is "one hundred three billion, one hundred five million, three hundred two thousand, three hundred twenty-one".