13115503453 has 4 divisors (see below), whose sum is σ = 14124388348. Its totient is φ = 12106618560.

The previous prime is 13115503447. The next prime is 13115503469. The reversal of 13115503453 is 35430551131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5675060889 + 7440442564 = 75333^2 + 86258^2 .

It is a cyclic number.

It is not a de Polignac number, because 13115503453 - 2⁵ = 13115503421 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 (13115503403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504442428 + ... + 504442453.

It is an arithmetic number, because the mean of its divisors is an integer number (3531097087).

Almost surely, 2^13115503453 is an apocalyptic number.

13115503453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13115503453 is a deficient number, since it is larger than the sum of its proper divisors (1008884895).

13115503453 is a wasteful number, since it uses less digits than its factorization.

13115503453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008884894.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 13115503453 in words is "thirteen billion, one hundred fifteen million, five hundred three thousand, four hundred fifty-three".