13542205321 has 8 divisors (see below), whose sum is σ = 14339821824. Its totient is φ = 12744701760.

The previous prime is 13542205309. The next prime is 13542205361. The reversal of 13542205321 is 12350224531.

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

It is a cyclic number.

It is not a de Polignac number, because 13542205321 - 2¹³ = 13542197129 is a prime.

It is a super-2 number, since 2×13542205321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13542205321.

It is not an unprimeable number, because it can be changed into a prime (13542205361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458676 + ... + 487306.

It is an arithmetic number, because the mean of its divisors is an integer number (1792477728).

Almost surely, 2^13542205321 is an apocalyptic number.

It is an amenable number.

13542205321 is a deficient number, since it is larger than the sum of its proper divisors (797616503).

13542205321 is a wasteful number, since it uses less digits than its factorization.

13542205321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56471.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13542205321 its reverse (12350224531), we get a palindrome (25892429852).

The spelling of 13542205321 in words is "thirteen billion, five hundred forty-two million, two hundred five thousand, three hundred twenty-one".