313100421 has 4 divisors (see below), whose sum is σ = 417467232. Its totient is φ = 208733612.

The previous prime is 313100393. The next prime is 313100423. The reversal of 313100421 is 124001313.

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.

It is a cyclic number.

It is not a de Polignac number, because 313100421 - 2¹³ = 313092229 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 313100421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313100423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52183401 + ... + 52183406.

It is an arithmetic number, because the mean of its divisors is an integer number (104366808).

Almost surely, 2^313100421 is an apocalyptic number.

It is an amenable number.

313100421 is a deficient number, since it is larger than the sum of its proper divisors (104366811).

313100421 is a wasteful number, since it uses less digits than its factorization.

313100421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104366810.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 313100421 is about 17694.6438506120. The cubic root of 313100421 is about 679.0387376562.

Adding to 313100421 its reverse (124001313), we get a palindrome (437101734).

The spelling of 313100421 in words is "three hundred thirteen million, one hundred thousand, four hundred twenty-one".