13451000402501 has 4 divisors (see below), whose sum is σ = 13451009042892. Its totient is φ = 13450991762112.

The previous prime is 13451000402491. The next prime is 13451000402561. The reversal of 13451000402501 is 10520400015431.

13451000402501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11813690781025 + 1637309621476 = 3437105^2 + 1279574^2 .

It is a cyclic number.

It is not a de Polignac number, because 13451000402501 - 2²² = 13450996208197 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 (13451000402561) 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, 1264730 + ... + 5338683.

It is an arithmetic number, because the mean of its divisors is an integer number (3362752260723).

Almost surely, 2^{13451000402501} is an apocalyptic number.

It is an amenable number.

13451000402501 is a deficient number, since it is larger than the sum of its proper divisors (8640391).

13451000402501 is an equidigital number, since it uses as much as digits as its factorization.

13451000402501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8640390.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 13451000402501 its reverse (10520400015431), we get a palindrome (23971400417932).

The spelling of 13451000402501 in words is "thirteen trillion, four hundred fifty-one billion, four hundred two thousand, five hundred one".