421213340310344 has 32 divisors (see below), whose sum is σ = 839089948678200. Its totient is φ = 197848577364480.

The previous prime is 421213340310331. The next prime is 421213340310349. The reversal of 421213340310344 is 443013043312124.

It can be written as a sum of positive squares in 4 ways, for example, as 316642877869444 + 104570462440900 = 17794462^2 + 10225970^2 .

It is not an unprimeable number, because it can be changed into a prime (421213340310349) 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, 24534785237 + ... + 24534802404.

Almost surely, 2^{421213340310344} is an apocalyptic number.

It is an amenable number.

421213340310344 is a deficient number, since it is larger than the sum of its proper divisors (417876608367856).

421213340310344 is a wasteful number, since it uses less digits than its factorization.

421213340310344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49069587713 (or 49069587709 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 421213340310344 its reverse (443013043312124), we get a palindrome (864226383622468).

The spelling of 421213340310344 in words is "four hundred twenty-one trillion, two hundred thirteen billion, three hundred forty million, three hundred ten thousand, three hundred forty-four".