13405215242 has 16 divisors (see below), whose sum is σ = 20506625280. Its totient is φ = 6570317952.

The previous prime is 13405215233. The next prime is 13405215253. The reversal of 13405215242 is 24251250431.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119258 + ... + 202565.

It is an arithmetic number, because the mean of its divisors is an integer number (1281664080).

Almost surely, 2^13405215242 is an apocalyptic number.

13405215242 is a deficient number, since it is larger than the sum of its proper divisors (7101410038).

13405215242 is a wasteful number, since it uses less digits than its factorization.

13405215242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322237.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 13405215242 its reverse (24251250431), we get a palindrome (37656465673).

The spelling of 13405215242 in words is "thirteen billion, four hundred five million, two hundred fifteen thousand, two hundred forty-two".