13123231132303 has 4 divisors (see below), whose sum is σ = 13123246509288. Its totient is φ = 13123215755320.

The previous prime is 13123231132301. The next prime is 13123231132339. The reversal of 13123231132303 is 30323113232131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13123231132303 - 2¹ = 13123231132301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123231132301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6328108 + ... + 8141953.

It is an arithmetic number, because the mean of its divisors is an integer number (3280811627322).

Almost surely, 2^{13123231132303} is an apocalyptic number.

13123231132303 is a deficient number, since it is larger than the sum of its proper divisors (15376985).

13123231132303 is an equidigital number, since it uses as much as digits as its factorization.

13123231132303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15376984.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 13123231132303 its reverse (30323113232131), we get a palindrome (43446344364434).

The spelling of 13123231132303 in words is "thirteen trillion, one hundred twenty-three billion, two hundred thirty-one million, one hundred thirty-two thousand, three hundred three".