420434403313121 has 8 divisors (see below), whose sum is σ = 424572976813440. Its totient is φ = 416296919930112.

The previous prime is 420434403313117. The next prime is 420434403313129. The reversal of 420434403313121 is 121313304434024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420434403313121 - 2² = 420434403313117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420434403313129) 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, 271754165 + ... + 273296898.

It is an arithmetic number, because the mean of its divisors is an integer number (53071622101680).

Almost surely, 2^{420434403313121} is an apocalyptic number.

It is an amenable number.

420434403313121 is a deficient number, since it is larger than the sum of its proper divisors (4138573500319).

420434403313121 is a wasteful number, since it uses less digits than its factorization.

420434403313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545058655.

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

Adding to 420434403313121 its reverse (121313304434024), we get a palindrome (541747707747145).

The spelling of 420434403313121 in words is "four hundred twenty trillion, four hundred thirty-four billion, four hundred three million, three hundred thirteen thousand, one hundred twenty-one".