13455221103 has 6 divisors (see below), whose sum is σ = 19435319384. Its totient is φ = 8970147396.

The previous prime is 13455221033. The next prime is 13455221137. The reversal of 13455221103 is 30112255431.

13455221103 is a `hidden beast` number, since 1 + 3 + 4 + 552 + 2 + 1 + 103 = 666.

It is not a de Polignac number, because 13455221103 - 2¹⁷ = 13455090031 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 (13455221173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 747512275 + ... + 747512292.

Almost surely, 2^13455221103 is an apocalyptic number.

13455221103 is a deficient number, since it is larger than the sum of its proper divisors (5980098281).

13455221103 is a wasteful number, since it uses less digits than its factorization.

13455221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495024573 (or 1495024570 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 13455221103 its reverse (30112255431), we get a palindrome (43567476534).

The spelling of 13455221103 in words is "thirteen billion, four hundred fifty-five million, two hundred twenty-one thousand, one hundred three".