100123501434 has 24 divisors (see below), whose sum is σ = 220106211360. Its totient is φ = 30340454760.

The previous prime is 100123501391. The next prime is 100123501447. The reversal of 100123501434 is 434105321001.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68954854 + ... + 68956305.

It is an arithmetic number, because the mean of its divisors is an integer number (9171092140).

Almost surely, 2^100123501434 is an apocalyptic number.

100123501434 is an abundant number, since it is smaller than the sum of its proper divisors (119982709926).

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

100123501434 is a wasteful number, since it uses less digits than its factorization.

100123501434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137911186 (or 137911175 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 100123501434 its reverse (434105321001), we get a palindrome (534228822435).

The spelling of 100123501434 in words is "one hundred billion, one hundred twenty-three million, five hundred one thousand, four hundred thirty-four".