100434235447 has 32 divisors (see below), whose sum is σ = 129053352960. Its totient is φ = 75969653760.

The previous prime is 100434235403. The next prime is 100434235477. The reversal of 100434235447 is 744532434001.

It is not a de Polignac number, because 100434235447 - 2¹¹ = 100434233399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100434235477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4344004 + ... + 4367062.

It is an arithmetic number, because the mean of its divisors is an integer number (4032917280).

Almost surely, 2^100434235447 is an apocalyptic number.

100434235447 is a deficient number, since it is larger than the sum of its proper divisors (28619117513).

100434235447 is a wasteful number, since it uses less digits than its factorization.

100434235447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25183.

The product of its (nonzero) digits is 161280, while the sum is 37.

Adding to 100434235447 its reverse (744532434001), we get a palindrome (844966669448).

The spelling of 100434235447 in words is "one hundred billion, four hundred thirty-four million, two hundred thirty-five thousand, four hundred forty-seven".