313100343121 has 4 divisors (see below), whose sum is σ = 313102153072. Its totient is φ = 313098533172.

The previous prime is 313100343109. The next prime is 313100343137. The reversal of 313100343121 is 121343001313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121343001313 = 147299 ⋅823787.

It is a cyclic number.

It is not a de Polignac number, because 313100343121 - 2⁵ = 313100343089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313100343092 and 313100343101.

It is not an unprimeable number, because it can be changed into a prime (313100343421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614391 + ... + 1001836.

It is an arithmetic number, because the mean of its divisors is an integer number (78275538268).

Almost surely, 2^313100343121 is an apocalyptic number.

It is an amenable number.

313100343121 is a deficient number, since it is larger than the sum of its proper divisors (1809951).

313100343121 is a wasteful number, since it uses less digits than its factorization.

313100343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809950.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 313100343121 its reverse (121343001313), we get a palindrome (434443344434).

The spelling of 313100343121 in words is "three hundred thirteen billion, one hundred million, three hundred forty-three thousand, one hundred twenty-one".