13121315342 has 16 divisors (see below), whose sum is σ = 19820505600. Its totient is φ = 6514612632.

The previous prime is 13121315329. The next prime is 13121315357. The reversal of 13121315342 is 24351312131.

It is a congruent number.

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, 167423 + ... + 232965.

It is an arithmetic number, because the mean of its divisors is an integer number (1238781600).

Almost surely, 2^13121315342 is an apocalyptic number.

13121315342 is a deficient number, since it is larger than the sum of its proper divisors (6699190258).

13121315342 is a wasteful number, since it uses less digits than its factorization.

13121315342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66247.

The product of its digits is 2160, while the sum is 26.

Adding to 13121315342 its reverse (24351312131), we get a palindrome (37472627473).

The spelling of 13121315342 in words is "thirteen billion, one hundred twenty-one million, three hundred fifteen thousand, three hundred forty-two".