13261223354 has 48 divisors (see below), whose sum is σ = 21776595552. Its totient is φ = 6051025152.

The previous prime is 13261223329. The next prime is 13261223401. The reversal of 13261223354 is 45332216231.

It is a self number, because there is not a number n which added to its sum of digits gives 13261223354.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7420049 + ... + 7421835.

It is an arithmetic number, because the mean of its divisors is an integer number (453679074).

Almost surely, 2^13261223354 is an apocalyptic number.

13261223354 is a deficient number, since it is larger than the sum of its proper divisors (8515372198).

13261223354 is a wasteful number, since it uses less digits than its factorization.

13261223354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207 (or 2190 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

Adding to 13261223354 its reverse (45332216231), we get a palindrome (58593439585).

The spelling of 13261223354 in words is "thirteen billion, two hundred sixty-one million, two hundred twenty-three thousand, three hundred fifty-four".