13215105043 has 4 divisors (see below), whose sum is σ = 15102977200. Its totient is φ = 11327232888.

The previous prime is 13215105031. The next prime is 13215105049. The reversal of 13215105043 is 34050151231.

It is a happy number.

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 13215105043 - 2⁹ = 13215104531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13215104999 and 13215105017.

It is not an unprimeable number, because it can be changed into a prime (13215105049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943936068 + ... + 943936081.

It is an arithmetic number, because the mean of its divisors is an integer number (3775744300).

Almost surely, 2^13215105043 is an apocalyptic number.

13215105043 is a deficient number, since it is larger than the sum of its proper divisors (1887872157).

13215105043 is an equidigital number, since it uses as much as digits as its factorization.

13215105043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887872156.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 13215105043 its reverse (34050151231), we get a palindrome (47265256274).

The spelling of 13215105043 in words is "thirteen billion, two hundred fifteen million, one hundred five thousand, forty-three".