100434144425 has 6 divisors (see below), whose sum is σ = 124538339118. Its totient is φ = 80347315520.

The previous prime is 100434144409. The next prime is 100434144463. The reversal of 100434144425 is 524441434001.

It can be written as a sum of positive squares in 3 ways, for example, as 5956598041 + 94477546384 = 77179^2 + 307372^2 .

It is not a de Polignac number, because 100434144425 - 2⁴ = 100434144409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100434144391 and 100434144400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2008682864 + ... + 2008682913.

It is an arithmetic number, because the mean of its divisors is an integer number (20756389853).

Almost surely, 2^100434144425 is an apocalyptic number.

It is an amenable number.

100434144425 is a deficient number, since it is larger than the sum of its proper divisors (24104194693).

100434144425 is an equidigital number, since it uses as much as digits as its factorization.

100434144425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017365787 (or 4017365782 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 100434144425 its reverse (524441434001), we get a palindrome (624875578426).

The spelling of 100434144425 in words is "one hundred billion, four hundred thirty-four million, one hundred forty-four thousand, four hundred twenty-five".