13542121315 has 8 divisors (see below), whose sum is σ = 16276303008. Its totient is φ = 10816525440.

The previous prime is 13542121301. The next prime is 13542121321. The reversal of 13542121315 is 51312124531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13542121315 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 2142982 + ... + 2149291.

It is an arithmetic number, because the mean of its divisors is an integer number (2034537876).

Almost surely, 2^13542121315 is an apocalyptic number.

13542121315 is a deficient number, since it is larger than the sum of its proper divisors (2734181693).

13542121315 is an equidigital number, since it uses as much as digits as its factorization.

13542121315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292909.

The product of its digits is 3600, while the sum is 28.

Adding to 13542121315 its reverse (51312124531), we get a palindrome (64854245846).

The spelling of 13542121315 in words is "thirteen billion, five hundred forty-two million, one hundred twenty-one thousand, three hundred fifteen".