13531200121 has 8 divisors (see below), whose sum is σ = 13568927840. Its totient is φ = 13493508768.

The previous prime is 13531200101. The next prime is 13531200143. The reversal of 13531200121 is 12100213531.

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 13531200121 - 2¹⁷ = 13531069049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531200101) 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, 845290 + ... + 861148.

It is an arithmetic number, because the mean of its divisors is an integer number (1696115980).

Almost surely, 2^13531200121 is an apocalyptic number.

It is an amenable number.

13531200121 is a deficient number, since it is larger than the sum of its proper divisors (37727719).

13531200121 is a wasteful number, since it uses less digits than its factorization.

13531200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18183.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 13531200121 its reverse (12100213531), we get a palindrome (25631413652).

The spelling of 13531200121 in words is "thirteen billion, five hundred thirty-one million, two hundred thousand, one hundred twenty-one".