13261406623306 has 4 divisors (see below), whose sum is σ = 19892109934962. Its totient is φ = 6630703311652.

The previous prime is 13261406623273. The next prime is 13261406623349. The reversal of 13261406623306 is 60332660416231.

13261406623306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 8308373880625 + 4953032742681 = 2882425^2 + 2225541^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315351655825 + ... + 3315351655828.

Almost surely, 2^{13261406623306} is an apocalyptic number.

13261406623306 is a deficient number, since it is larger than the sum of its proper divisors (6630703311656).

13261406623306 is an equidigital number, since it uses as much as digits as its factorization.

13261406623306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6630703311655.

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 13261406623306 in words is "thirteen trillion, two hundred sixty-one billion, four hundred six million, six hundred twenty-three thousand, three hundred six".