13266123410231 has 4 divisors (see below), whose sum is σ = 13296761109072. Its totient is φ = 13235485711392.

The previous prime is 13266123410203. The next prime is 13266123410291. The reversal of 13266123410231 is 13201432166231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13266123410231 is a prime.

It is a super-2 number, since 2×13266123410231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13266123410191 and 13266123410200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13266123410201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15318848771 + ... + 15318849636.

It is an arithmetic number, because the mean of its divisors is an integer number (3324190277268).

Almost surely, 2^{13266123410231} is an apocalyptic number.

13266123410231 is a deficient number, since it is larger than the sum of its proper divisors (30637698841).

13266123410231 is an equidigital number, since it uses as much as digits as its factorization.

13266123410231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30637698840.

The product of its (nonzero) digits is 31104, while the sum is 35.

Adding to 13266123410231 its reverse (13201432166231), we get a palindrome (26467555576462).

The spelling of 13266123410231 in words is "thirteen trillion, two hundred sixty-six billion, one hundred twenty-three million, four hundred ten thousand, two hundred thirty-one".