13103021233 has 4 divisors (see below), whose sum is σ = 13457156980. Its totient is φ = 12748885488.

The previous prime is 13103021153. The next prime is 13103021329. The reversal of 13103021233 is 33212030131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5981011569 + 7122009664 = 77337^2 + 84392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13103021233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13103021233.

It is not an unprimeable number, because it can be changed into a prime (13103021033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177067818 + ... + 177067891.

It is an arithmetic number, because the mean of its divisors is an integer number (3364289245).

Almost surely, 2^13103021233 is an apocalyptic number.

It is an amenable number.

13103021233 is a deficient number, since it is larger than the sum of its proper divisors (354135747).

13103021233 is an equidigital number, since it uses as much as digits as its factorization.

13103021233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354135746.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13103021233 its reverse (33212030131), we get a palindrome (46315051364).

The spelling of 13103021233 in words is "thirteen billion, one hundred three million, twenty-one thousand, two hundred thirty-three".