100434330123 has 4 divisors (see below), whose sum is σ = 133912440168. Its totient is φ = 66956220080.

The previous prime is 100434330103. The next prime is 100434330149. The reversal of 100434330123 is 321033434001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100434330123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100434330093 and 100434330102.

It is not an unprimeable number, because it can be changed into a prime (100434330103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16739055018 + ... + 16739055023.

It is an arithmetic number, because the mean of its divisors is an integer number (33478110042).

Almost surely, 2^100434330123 is an apocalyptic number.

100434330123 is a deficient number, since it is larger than the sum of its proper divisors (33478110045).

100434330123 is an equidigital number, since it uses as much as digits as its factorization.

100434330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33478110044.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 100434330123 its reverse (321033434001), we get a palindrome (421467764124).

The spelling of 100434330123 in words is "one hundred billion, four hundred thirty-four million, three hundred thirty thousand, one hundred twenty-three".