13121220301333 has 8 divisors (see below), whose sum is σ = 13425827801400. Its totient is φ = 12819500076480.

The previous prime is 13121220301303. The next prime is 13121220301339. The reversal of 13121220301333 is 33310302212131.

It can be written as a sum of positive squares in 4 ways, for example, as 2200852359729 + 10920367941604 = 1483527^2 + 3304598^2 .

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 13121220301333 - 2⁹ = 13121220300821 is a prime.

It is a super-2 number, since 2×13121220301333² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121220301298 and 13121220301307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121220301339) 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 7 ways as a sum of consecutive naturals, for example, 721809610 + ... + 721827787.

It is an arithmetic number, because the mean of its divisors is an integer number (1678228475175).

Almost surely, 2^{13121220301333} is an apocalyptic number.

It is an amenable number.

13121220301333 is a deficient number, since it is larger than the sum of its proper divisors (304607500067).

13121220301333 is a wasteful number, since it uses less digits than its factorization.

13121220301333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443637607.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13121220301333 its reverse (33310302212131), we get a palindrome (46431522513464).

The spelling of 13121220301333 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twenty million, three hundred one thousand, three hundred thirty-three".