13261106123 has 4 divisors (see below), whose sum is σ = 13270049688. Its totient is φ = 13252162560.

The previous prime is 13261106087. The next prime is 13261106143. The reversal of 13261106123 is 32160116231.

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 13261106123 - 2⁶ = 13261106059 is a prime.

It is a super-2 number, since 2×13261106123² (a number of 21 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 = 13261106092 and 13261106101.

It is not an unprimeable number, because it can be changed into a prime (13261106143) 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, 4469558 + ... + 4472523.

It is an arithmetic number, because the mean of its divisors is an integer number (3317512422).

Almost surely, 2^13261106123 is an apocalyptic number.

13261106123 is a deficient number, since it is larger than the sum of its proper divisors (8943565).

13261106123 is an equidigital number, since it uses as much as digits as its factorization.

13261106123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8943564.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 13261106123 in words is "thirteen billion, two hundred sixty-one million, one hundred six thousand, one hundred twenty-three".