100420443632 has 20 divisors (see below), whose sum is σ = 196049839656. Its totient is φ = 49826936640.

The previous prime is 100420443581. The next prime is 100420443637. The reversal of 100420443632 is 236344024001.

It is a junction number, because it is equal to n+sod(n) for n = 100420443595 and 100420443604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100420443637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23953163 + ... + 23957354.

Almost surely, 2^100420443632 is an apocalyptic number.

It is an amenable number.

100420443632 is a deficient number, since it is larger than the sum of its proper divisors (95629396024).

100420443632 is a wasteful number, since it uses less digits than its factorization.

100420443632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47910656 (or 47910650 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 100420443632 its reverse (236344024001), we get a palindrome (336764467633).

The spelling of 100420443632 in words is "one hundred billion, four hundred twenty million, four hundred forty-three thousand, six hundred thirty-two".