13313121 has 8 divisors (see below), whose sum is σ = 17783904. Its totient is φ = 8858880.

The previous prime is 13313107. The next prime is 13313141. The reversal of 13313121 is 12131331.

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

It is not a de Polignac number, because 13313121 - 2⁵ = 13313089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13313121.

It is not an unprimeable number, because it can be changed into a prime (13313141) 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, 2115 + ... + 5576.

It is an arithmetic number, because the mean of its divisors is an integer number (2222988).

Almost surely, 2^13313121 is an apocalyptic number.

It is an amenable number.

13313121 is a deficient number, since it is larger than the sum of its proper divisors (4470783).

13313121 is an equidigital number, since it uses as much as digits as its factorization.

13313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8271.

The product of its digits is 54, while the sum is 15.

The square root of 13313121 is about 3648.7149792770. The cubic root of 13313121 is about 237.0063378461.

Adding to 13313121 its reverse (12131331), we get a palindrome (25444452).

The spelling of 13313121 in words is "thirteen million, three hundred thirteen thousand, one hundred twenty-one".