13201321203331 has 4 divisors (see below), whose sum is σ = 13201412506792. Its totient is φ = 13201229899872.

The previous prime is 13201321203293. The next prime is 13201321203379. The reversal of 13201321203331 is 13330212310231.

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 13201321203331 - 2³⁵ = 13166961464963 is a prime.

It is a super-2 number, since 2×13201321203331² (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 = 13201321203296 and 13201321203305.

It is not an unprimeable number, because it can be changed into a prime (13201321603331) 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, 45434505 + ... + 45724138.

It is an arithmetic number, because the mean of its divisors is an integer number (3300353126698).

Almost surely, 2^{13201321203331} is an apocalyptic number.

13201321203331 is a deficient number, since it is larger than the sum of its proper divisors (91303461).

13201321203331 is an equidigital number, since it uses as much as digits as its factorization.

13201321203331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91303460.

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

Adding to 13201321203331 its reverse (13330212310231), we get a palindrome (26531533513562).

The spelling of 13201321203331 in words is "thirteen trillion, two hundred one billion, three hundred twenty-one million, two hundred three thousand, three hundred thirty-one".