100400440003 has 8 divisors (see below), whose sum is σ = 101063725056. Its totient is φ = 99739245000.

The previous prime is 100400439941. The next prime is 100400440009. The reversal of 100400440003 is 300044004001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100400440003 - 2²⁵ = 100366885571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100400440009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426063 + ... + 618328.

It is an arithmetic number, because the mean of its divisors is an integer number (12632965632).

Almost surely, 2^100400440003 is an apocalyptic number.

100400440003 is a deficient number, since it is larger than the sum of its proper divisors (663285053).

100400440003 is a wasteful number, since it uses less digits than its factorization.

100400440003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045025.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 100400440003 its reverse (300044004001), we get a palindrome (400444444004).

The spelling of 100400440003 in words is "one hundred billion, four hundred million, four hundred forty thousand, three".