420143343402100 has 36 divisors (see below), whose sum is σ = 912134516428044. Its totient is φ = 167979279988480.

The previous prime is 420143343402071. The next prime is 420143343402103. The reversal of 420143343402100 is 1204343341024.

It can be written as a sum of positive squares in 6 ways, for example, as 131692929868516 + 288450413533584 = 11475754^2 + 16983828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420143343402103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 975500779 + ... + 975931378.

It is an arithmetic number, because the mean of its divisors is an integer number (25337069900779).

Almost surely, 2^{420143343402100} is an apocalyptic number.

It is an amenable number.

420143343402100 is an abundant number, since it is smaller than the sum of its proper divisors (491991173025944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420143343402100 is a wasteful number, since it uses less digits than its factorization.

420143343402100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951434324 (or 1951434317 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 420143343402100 its reverse (1204343341024), we get a palindrome (421347686743124).

The spelling of 420143343402100 in words is "four hundred twenty trillion, one hundred forty-three billion, three hundred forty-three million, four hundred two thousand, one hundred".