13103103321 has 128 divisors (see below), whose sum is σ = 25397452800. Its totient is φ = 6477408000.

The previous prime is 13103103317. The next prime is 13103103329. The reversal of 13103103321 is 12330130131.

It is a happy number.

13103103321 is a `hidden beast` number, since 1 + 31 + 0 + 310 + 3 + 321 = 666.

It is not a de Polignac number, because 13103103321 - 2² = 13103103317 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13103103294 and 13103103303.

It is not an unprimeable number, because it can be changed into a prime (13103103329) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4279131 + ... + 4282191.

It is an arithmetic number, because the mean of its divisors is an integer number (198417600).

Almost surely, 2^13103103321 is an apocalyptic number.

13103103321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13103103321 is a deficient number, since it is larger than the sum of its proper divisors (12294349479).

13103103321 is a wasteful number, since it uses less digits than its factorization.

13103103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188 (or 3182 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13103103321 its reverse (12330130131), we get a palindrome (25433233452).

The spelling of 13103103321 in words is "thirteen billion, one hundred three million, one hundred three thousand, three hundred twenty-one".