13321312203331 has 32 divisors (see below), whose sum is σ = 15019515092736. Its totient is φ = 11709988080000.

The previous prime is 13321312203317. The next prime is 13321312203371. The reversal of 13321312203331 is 13330221312331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13321312203331 - 2¹¹ = 13321312201283 is a prime.

It is a super-2 number, since 2×13321312203331² (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 13321312203331.

It is not an unprimeable number, because it can be changed into a prime (13321312203371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509581521 + ... + 509607661.

It is an arithmetic number, because the mean of its divisors is an integer number (469359846648).

Almost surely, 2^{13321312203331} is an apocalyptic number.

13321312203331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13321312203331 is a deficient number, since it is larger than the sum of its proper divisors (1698202889405).

13321312203331 is a wasteful number, since it uses less digits than its factorization.

13321312203331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36963.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 13321312203331 its reverse (13330221312331), we get a palindrome (26651533515662).

The spelling of 13321312203331 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twelve million, two hundred three thousand, three hundred thirty-one".