13241221421553 has 6 divisors (see below), whose sum is σ = 19126208720034. Its totient is φ = 8827480947696.

The previous prime is 13241221421537. The next prime is 13241221421569. The reversal of 13241221421553 is 35512412214231.

13241221421553 is a `hidden beast` number, since 1 + 3 + 2 + 4 + 1 + 221 + 421 + 5 + 5 + 3 = 666.

13241221421553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13241221421537) and next prime (13241221421569).

It can be written as a sum of positive squares in only one way, i.e., 11957604932529 + 1283616489024 = 3457977^2 + 1132968^2 .

It is not a de Polignac number, because 13241221421553 - 2⁴ = 13241221421537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13241221426553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 735623412300 + ... + 735623412317.

It is an arithmetic number, because the mean of its divisors is an integer number (3187701453339).

Almost surely, 2^{13241221421553} is an apocalyptic number.

It is an amenable number.

13241221421553 is a deficient number, since it is larger than the sum of its proper divisors (5884987298481).

13241221421553 is a wasteful number, since it uses less digits than its factorization.

13241221421553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471246824623 (or 1471246824620 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 13241221421553 its reverse (35512412214231), we get a palindrome (48753633635784).

The spelling of 13241221421553 in words is "thirteen trillion, two hundred forty-one billion, two hundred twenty-one million, four hundred twenty-one thousand, five hundred fifty-three".