100443220434 has 24 divisors (see below), whose sum is σ = 229081029840. Its totient is φ = 31718911608.

The previous prime is 100443220429. The next prime is 100443220447. The reversal of 100443220434 is 434022344001.

It is a happy number.

100443220434 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 4 + 3 + 220 + 434 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 100443220398 and 100443220407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146846472 + ... + 146847155.

It is an arithmetic number, because the mean of its divisors is an integer number (9545042910).

Almost surely, 2^100443220434 is an apocalyptic number.

100443220434 is an abundant number, since it is smaller than the sum of its proper divisors (128637809406).

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

100443220434 is a wasteful number, since it uses less digits than its factorization.

100443220434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293693654 (or 293693651 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 100443220434 its reverse (434022344001), we get a palindrome (534465564435).

The spelling of 100443220434 in words is "one hundred billion, four hundred forty-three million, two hundred twenty thousand, four hundred thirty-four".