313012321121 has 8 divisors (see below), whose sum is σ = 313698078720. Its totient is φ = 312326699008.

The previous prime is 313012321081. The next prime is 313012321151. The reversal of 313012321121 is 121123210313.

It is a happy number.

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 313012321121 - 2²² = 313008126817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313012321093 and 313012321102.

It is not an unprimeable number, because it can be changed into a prime (313012321151) 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, 5613440 + ... + 5668926.

It is an arithmetic number, because the mean of its divisors is an integer number (39212259840).

Almost surely, 2^313012321121 is an apocalyptic number.

It is an amenable number.

313012321121 is a deficient number, since it is larger than the sum of its proper divisors (685757599).

313012321121 is a wasteful number, since it uses less digits than its factorization.

313012321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67743.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 313012321121 its reverse (121123210313), we get a palindrome (434135531434).

The spelling of 313012321121 in words is "three hundred thirteen billion, twelve million, three hundred twenty-one thousand, one hundred twenty-one".