100400430401 has 4 divisors (see below), whose sum is σ = 105684663600. Its totient is φ = 95116197204.

The previous prime is 100400430397. The next prime is 100400430413. The reversal of 100400430401 is 104034004001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104034004001 = 419 ⋅248291179.

It is a cyclic number.

It is not a de Polignac number, because 100400430401 - 2² = 100400430397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100400430401.

It is not an unprimeable number, because it can be changed into a prime (100400430421) 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, 2642116571 + ... + 2642116608.

It is an arithmetic number, because the mean of its divisors is an integer number (26421165900).

Almost surely, 2^100400430401 is an apocalyptic number.

It is an amenable number.

100400430401 is a deficient number, since it is larger than the sum of its proper divisors (5284233199).

100400430401 is an equidigital number, since it uses as much as digits as its factorization.

100400430401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284233198.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 100400430401 its reverse (104034004001), we get a palindrome (204434434402).

The spelling of 100400430401 in words is "one hundred billion, four hundred million, four hundred thirty thousand, four hundred one".