13512021055 has 8 divisors (see below), whose sum is σ = 17461688832. Its totient is φ = 9978107808.

The previous prime is 13512021053. The next prime is 13512021059. The reversal of 13512021055 is 55012021531.

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 13512021055 - 2¹ = 13512021053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13512021053) 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, 103938559 + ... + 103938688.

It is an arithmetic number, because the mean of its divisors is an integer number (2182711104).

Almost surely, 2^13512021055 is an apocalyptic number.

13512021055 is a deficient number, since it is larger than the sum of its proper divisors (3949667777).

13512021055 is a wasteful number, since it uses less digits than its factorization.

13512021055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207877265.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 13512021055 its reverse (55012021531), we get a palindrome (68524042586).

The spelling of 13512021055 in words is "thirteen billion, five hundred twelve million, twenty-one thousand, fifty-five".