13121311330 has 8 divisors (see below), whose sum is σ = 23618360412. Its totient is φ = 5248524528.

The previous prime is 13121311279. The next prime is 13121311361. The reversal of 13121311330 is 3311312131.

It can be written as a sum of positive squares in 2 ways, for example, as 11859427801 + 1261883529 = 108901^2 + 35523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13121311330² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13121311298 and 13121311307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656065557 + ... + 656065576.

Almost surely, 2^13121311330 is an apocalyptic number.

13121311330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121311330 is a deficient number, since it is larger than the sum of its proper divisors (10497049082).

13121311330 is a wasteful number, since it uses less digits than its factorization.

13121311330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312131140.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13121311330 its reverse (3311312131), we get a palindrome (16432623461).

The spelling of 13121311330 in words is "thirteen billion, one hundred twenty-one million, three hundred eleven thousand, three hundred thirty".