13122230321 has 16 divisors (see below), whose sum is σ = 13506884160. Its totient is φ = 12741442560.

The previous prime is 13122230309. The next prime is 13122230339. The reversal of 13122230321 is 12303222131.

It is a cyclic number.

It is not a de Polignac number, because 13122230321 - 2²² = 13118036017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13122230293 and 13122230302.

It is not an unprimeable number, because it can be changed into a prime (13122230371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5751701 + ... + 5753981.

It is an arithmetic number, because the mean of its divisors is an integer number (844180260).

Almost surely, 2^13122230321 is an apocalyptic number.

It is an amenable number.

13122230321 is a deficient number, since it is larger than the sum of its proper divisors (384653839).

13122230321 is a wasteful number, since it uses less digits than its factorization.

13122230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13122230321 its reverse (12303222131), we get a palindrome (25425452452).

The spelling of 13122230321 in words is "thirteen billion, one hundred twenty-two million, two hundred thirty thousand, three hundred twenty-one".