13143342542121 has 64 divisors (see below), whose sum is σ = 21981449318400. Its totient is φ = 7688461032000.

The previous prime is 13143342542093. The next prime is 13143342542129. The reversal of 13143342542121 is 12124524334131.

13143342542121 is a `hidden beast` number, since 1 + 3 + 1 + 433 + 4 + 2 + 5 + 4 + 212 + 1 = 666.

13143342542121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13143342542121 - 2²² = 13143338347817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13143342542129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26167296 + ... + 26664846.

It is an arithmetic number, because the mean of its divisors is an integer number (343460145600).

Almost surely, 2^{13143342542121} is an apocalyptic number.

13143342542121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13143342542121 is a deficient number, since it is larger than the sum of its proper divisors (8838106776279).

13143342542121 is a wasteful number, since it uses less digits than its factorization.

13143342542121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500667 (or 500661 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

Adding to 13143342542121 its reverse (12124524334131), we get a palindrome (25267866876252).

The spelling of 13143342542121 in words is "thirteen trillion, one hundred forty-three billion, three hundred forty-two million, five hundred forty-two thousand, one hundred twenty-one".