13215111641326 has 64 divisors (see below), whose sum is σ = 23973768806400. Its totient is φ = 5340962236896.

The previous prime is 13215111641239. The next prime is 13215111641341. The reversal of 13215111641326 is 62314611151231.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 16993845 + ... + 17754463.

It is an arithmetic number, because the mean of its divisors is an integer number (374590137600).

Almost surely, 2^{13215111641326} is an apocalyptic number.

13215111641326 is a deficient number, since it is larger than the sum of its proper divisors (10758657165074).

13215111641326 is a wasteful number, since it uses less digits than its factorization.

13215111641326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761413.

The product of its digits is 25920, while the sum is 37.

Adding to 13215111641326 its reverse (62314611151231), we get a palindrome (75529722792557).

The spelling of 13215111641326 in words is "thirteen trillion, two hundred fifteen billion, one hundred eleven million, six hundred forty-one thousand, three hundred twenty-six".