13212313331 has 8 divisors (see below), whose sum is σ = 15192424704. Its totient is φ = 11255361480.

The previous prime is 13212313327. The next prime is 13212313337. The reversal of 13212313331 is 13331321231.

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 13212313331 - 2² = 13212313327 is a prime.

It is a super-2 number, since 2×13212313331² (a number of 21 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 = 13212313297 and 13212313306.

It is not an unprimeable number, because it can be changed into a prime (13212313337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5788655 + ... + 5790936.

It is an arithmetic number, because the mean of its divisors is an integer number (1899053088).

Almost surely, 2^13212313331 is an apocalyptic number.

13212313331 is a deficient number, since it is larger than the sum of its proper divisors (1980111373).

13212313331 is a wasteful number, since it uses less digits than its factorization.

13212313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11579761.

The product of its digits is 972, while the sum is 23.

Adding to 13212313331 its reverse (13331321231), we get a palindrome (26543634562).

The spelling of 13212313331 in words is "thirteen billion, two hundred twelve million, three hundred thirteen thousand, three hundred thirty-one".