310204421 has 2 divisors, whose sum is σ = 310204422. Its totient is φ = 310204420.

The previous prime is 310204369. The next prime is 310204429. The reversal of 310204421 is 124402013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309232225 + 972196 = 17585^2 + 986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310204421 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 310204421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310204429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155102210 + 155102211.

It is an arithmetic number, because the mean of its divisors is an integer number (155102211).

Almost surely, 2^310204421 is an apocalyptic number.

It is an amenable number.

310204421 is a deficient number, since it is larger than the sum of its proper divisors (1).

310204421 is an equidigital number, since it uses as much as digits as its factorization.

310204421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 310204421 is about 17612.6210712659. The cubic root of 310204421 is about 676.9386760474.

Adding to 310204421 its reverse (124402013), we get a palindrome (434606434).

The spelling of 310204421 in words is "three hundred ten million, two hundred four thousand, four hundred twenty-one".