13311322231989 has 4 divisors (see below), whose sum is σ = 17748429642656. Its totient is φ = 8874214821324.

The previous prime is 13311322231981. The next prime is 13311322232071. The reversal of 13311322231989 is 98913222311331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13311322231989 - 2³ = 13311322231981 is a prime.

It is a super-3 number, since 3×13311322231989³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311322231981) 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, 2218553705329 + ... + 2218553705334.

It is an arithmetic number, because the mean of its divisors is an integer number (4437107410664).

Almost surely, 2^{13311322231989} is an apocalyptic number.

It is an amenable number.

13311322231989 is a deficient number, since it is larger than the sum of its proper divisors (4437107410667).

13311322231989 is an equidigital number, since it uses as much as digits as its factorization.

13311322231989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437107410666.

The product of its digits is 419904, while the sum is 48.

The spelling of 13311322231989 in words is "thirteen trillion, three hundred eleven billion, three hundred twenty-two million, two hundred thirty-one thousand, nine hundred eighty-nine".