13313021121 has 12 divisors (see below), whose sum is σ = 19242118480. Its totient is φ = 8869717080.

The previous prime is 13313021089. The next prime is 13313021159. The reversal of 13313021121 is 12112031331.

13313021121 is a `hidden beast` number, since 1 + 331 + 302 + 11 + 21 = 666.

It is not a de Polignac number, because 13313021121 - 2⁵ = 13313021089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13313021094 and 13313021103.

It is not an unprimeable number, because it can be changed into a prime (13313021221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 454195 + ... + 482616.

Almost surely, 2^13313021121 is an apocalyptic number.

It is an amenable number.

13313021121 is a deficient number, since it is larger than the sum of its proper divisors (5929097359).

13313021121 is a wasteful number, since it uses less digits than its factorization.

13313021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938396 (or 938393 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13313021121 its reverse (12112031331), we get a palindrome (25425052452).

The spelling of 13313021121 in words is "thirteen billion, three hundred thirteen million, twenty-one thousand, one hundred twenty-one".