13321121020203 has 8 divisors (see below), whose sum is σ = 17762134190400. Its totient is φ = 8880427598408.

The previous prime is 13321121020199. The next prime is 13321121020219. The reversal of 13321121020203 is 30202012112331.

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 13321121020203 - 2² = 13321121020199 is a prime.

It is a super-2 number, since 2×13321121020203² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13321121020203.

It is not an unprimeable number, because it can be changed into a prime (13321121020253) 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, 79839873 + ... + 80006546.

It is an arithmetic number, because the mean of its divisors is an integer number (2220266773800).

Almost surely, 2^{13321121020203} is an apocalyptic number.

13321121020203 is a deficient number, since it is larger than the sum of its proper divisors (4441013170197).

13321121020203 is a wasteful number, since it uses less digits than its factorization.

13321121020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159874201.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13321121020203 its reverse (30202012112331), we get a palindrome (43523133132534).

The spelling of 13321121020203 in words is "thirteen trillion, three hundred twenty-one billion, one hundred twenty-one million, twenty thousand, two hundred three".