13620541220023 has 4 divisors (see below), whose sum is σ = 13621460734008. Its totient is φ = 13619621706040.

The previous prime is 13620541219991. The next prime is 13620541220029. The reversal of 13620541220023 is 32002214502631.

13620541220023 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.

It is a cyclic number.

It is not a de Polignac number, because 13620541220023 - 2⁵ = 13620541219991 is a prime.

It is a super-2 number, since 2×13620541220023² (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 (13620541220029) 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, 459734773 + ... + 459764398.

It is an arithmetic number, because the mean of its divisors is an integer number (3405365183502).

Almost surely, 2^{13620541220023} is an apocalyptic number.

13620541220023 is a deficient number, since it is larger than the sum of its proper divisors (919513985).

13620541220023 is an equidigital number, since it uses as much as digits as its factorization.

13620541220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919513984.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 13620541220023 its reverse (32002214502631), we get a palindrome (45622755722654).

The spelling of 13620541220023 in words is "thirteen trillion, six hundred twenty billion, five hundred forty-one million, two hundred twenty thousand, twenty-three".