13123440232333 has 4 divisors (see below), whose sum is σ = 13135716604060. Its totient is φ = 13111163860608.

The previous prime is 13123440232303. The next prime is 13123440232349. The reversal of 13123440232333 is 33323204432131.

It is a happy number.

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 9411722029609 + 3711718202724 = 3067853^2 + 1926582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123440232333 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 (13123440232303) 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, 6138184260 + ... + 6138186397.

It is an arithmetic number, because the mean of its divisors is an integer number (3283929151015).

Almost surely, 2^{13123440232333} is an apocalyptic number.

It is an amenable number.

13123440232333 is a deficient number, since it is larger than the sum of its proper divisors (12276371727).

13123440232333 is a wasteful number, since it uses less digits than its factorization.

13123440232333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12276371726.

The product of its (nonzero) digits is 93312, while the sum is 34.

Adding to 13123440232333 its reverse (33323204432131), we get a palindrome (46446644664464).

The spelling of 13123440232333 in words is "thirteen trillion, one hundred twenty-three billion, four hundred forty million, two hundred thirty-two thousand, three hundred thirty-three".