13311322231987 has 8 divisors (see below), whose sum is σ = 14507984194704. Its totient is φ = 12139333711968.

The previous prime is 13311322231981. The next prime is 13311322232071. The reversal of 13311322231987 is 78913222311331.

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 13311322231987 - 2¹¹ = 13311322229939 is a prime.

It is a super-3 number, since 3×13311322231987³ (a number of 40 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 6168359548 + ... + 6168361705.

It is an arithmetic number, because the mean of its divisors is an integer number (1813498024338).

Almost surely, 2^{13311322231987} is an apocalyptic number.

13311322231987 is a deficient number, since it is larger than the sum of its proper divisors (1196661962717).

13311322231987 is a wasteful number, since it uses less digits than its factorization.

13311322231987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12336721349.

The product of its digits is 326592, while the sum is 46.

The spelling of 13311322231987 in words is "thirteen trillion, three hundred eleven billion, three hundred twenty-two million, two hundred thirty-one thousand, nine hundred eighty-seven".