13121311384 has 32 divisors (see below), whose sum is σ = 25943986800. Its totient is φ = 6204159360.

The previous prime is 13121311361. The next prime is 13121311397. The reversal of 13121311384 is 48311312131.

It is a super-3 number, since 3×13121311384³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7174 + ... + 162154.

Almost surely, 2^13121311384 is an apocalyptic number.

It is an amenable number.

13121311384 is a deficient number, since it is larger than the sum of its proper divisors (12822675416).

13121311384 is a wasteful number, since it uses less digits than its factorization.

13121311384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155563 (or 155559 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The spelling of 13121311384 in words is "thirteen billion, one hundred twenty-one million, three hundred eleven thousand, three hundred eighty-four".