420322135005 has 48 divisors (see below), whose sum is σ = 761074704000. Its totient is φ = 214188315264.

The previous prime is 420322135001. The next prime is 420322135043. The reversal of 420322135005 is 500531223024.

It is a happy number.

It is not a de Polignac number, because 420322135005 - 2² = 420322135001 is a prime.

It is a super-2 number, since 2×420322135005² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420322135005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420322135001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 714871 + ... + 1162619.

It is an arithmetic number, because the mean of its divisors is an integer number (15855723000).

Almost surely, 2^420322135005 is an apocalyptic number.

420322135005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420322135005 is a deficient number, since it is larger than the sum of its proper divisors (340752568995).

420322135005 is a wasteful number, since it uses less digits than its factorization.

420322135005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448690 (or 448687 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 420322135005 its reverse (500531223024), we get a palindrome (920853358029).

The spelling of 420322135005 in words is "four hundred twenty billion, three hundred twenty-two million, one hundred thirty-five thousand, five".