13413502123251 has 4 divisors (see below), whose sum is σ = 17884669497672. Its totient is φ = 8942334748832.

The previous prime is 13413502123157. The next prime is 13413502123313. The reversal of 13413502123251 is 15232120531431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13413502123251 - 2¹⁴ = 13413502106867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13413502124251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235583687206 + ... + 2235583687211.

It is an arithmetic number, because the mean of its divisors is an integer number (4471167374418).

Almost surely, 2^{13413502123251} is an apocalyptic number.

13413502123251 is a deficient number, since it is larger than the sum of its proper divisors (4471167374421).

13413502123251 is an equidigital number, since it uses as much as digits as its factorization.

13413502123251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471167374420.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 13413502123251 its reverse (15232120531431), we get a palindrome (28645622654682).

The spelling of 13413502123251 in words is "thirteen trillion, four hundred thirteen billion, five hundred two million, one hundred twenty-three thousand, two hundred fifty-one".