13123204431333 has 4 divisors (see below), whose sum is σ = 17497605908448. Its totient is φ = 8748802954220.

The previous prime is 13123204431313. The next prime is 13123204431371. The reversal of 13123204431333 is 33313440232131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13123204431333 - 2¹⁰ = 13123204430309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13123204431294 and 13123204431303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123204431313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187200738553 + ... + 2187200738558.

It is an arithmetic number, because the mean of its divisors is an integer number (4374401477112).

Almost surely, 2^{13123204431333} is an apocalyptic number.

It is an amenable number.

13123204431333 is a deficient number, since it is larger than the sum of its proper divisors (4374401477115).

13123204431333 is an equidigital number, since it uses as much as digits as its factorization.

13123204431333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374401477114.

The product of its (nonzero) digits is 46656, while the sum is 33.

Adding to 13123204431333 its reverse (33313440232131), we get a palindrome (46436644663464).

The spelling of 13123204431333 in words is "thirteen trillion, one hundred twenty-three billion, two hundred four million, four hundred thirty-one thousand, three hundred thirty-three".