13325405115421 has 8 divisors (see below), whose sum is σ = 15261644773440. Its totient is φ = 11397318046368.

The previous prime is 13325405115409. The next prime is 13325405115443. The reversal of 13325405115421 is 12451150452331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13325405115421 - 2¹¹ = 13325405113373 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 (13325405116421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2038143736 + ... + 2038150273.

It is an arithmetic number, because the mean of its divisors is an integer number (1907705596680).

Almost surely, 2^{13325405115421} is an apocalyptic number.

It is an amenable number.

13325405115421 is a deficient number, since it is larger than the sum of its proper divisors (1936239658019).

13325405115421 is an equidigital number, since it uses as much as digits as its factorization.

13325405115421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4076294483.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 13325405115421 its reverse (12451150452331), we get a palindrome (25776555567752).

The spelling of 13325405115421 in words is "thirteen trillion, three hundred twenty-five billion, four hundred five million, one hundred fifteen thousand, four hundred twenty-one".