13103511404453 has 4 divisors (see below), whose sum is σ = 13423109243628. Its totient is φ = 12783913565280.

The previous prime is 13103511404413. The next prime is 13103511404461. The reversal of 13103511404453 is 35440411530131.

It is a happy number.

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 5410471385764 + 7693040018689 = 2326042^2 + 2773633^2 .

It is a cyclic number.

It is not a de Polignac number, because 13103511404453 - 2¹⁶ = 13103511338917 is a prime.

It is a super-2 number, since 2×13103511404453² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103511404413) 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, 159798919526 + ... + 159798919607.

It is an arithmetic number, because the mean of its divisors is an integer number (3355777310907).

Almost surely, 2^{13103511404453} is an apocalyptic number.

It is an amenable number.

13103511404453 is a deficient number, since it is larger than the sum of its proper divisors (319597839175).

13103511404453 is an equidigital number, since it uses as much as digits as its factorization.

13103511404453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319597839174.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 13103511404453 its reverse (35440411530131), we get a palindrome (48543922934584).

The spelling of 13103511404453 in words is "thirteen trillion, one hundred three billion, five hundred eleven million, four hundred four thousand, four hundred fifty-three".