421122313 has 2 divisors, whose sum is σ = 421122314. Its totient is φ = 421122312.

The previous prime is 421122307. The next prime is 421122319. The reversal of 421122313 is 313221124.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (421122307) and next prime (421122319).

It can be written as a sum of positive squares in only one way, i.e., 398721024 + 22401289 = 19968^2 + 4733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421122313 is a prime.

It is not a weakly prime, because it can be changed into another prime (421122319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210561156 + 210561157.

It is an arithmetic number, because the mean of its divisors is an integer number (210561157).

Almost surely, 2^421122313 is an apocalyptic number.

It is an amenable number.

421122313 is a deficient number, since it is larger than the sum of its proper divisors (1).

421122313 is an equidigital number, since it uses as much as digits as its factorization.

421122313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 421122313 is about 20521.2648976616. The cubic root of 421122313 is about 749.5536977310.

Adding to 421122313 its reverse (313221124), we get a palindrome (734343437).

The spelling of 421122313 in words is "four hundred twenty-one million, one hundred twenty-two thousand, three hundred thirteen".