100401440023 has 8 divisors (see below), whose sum is σ = 110280758400. Its totient is φ = 90981624888.

The previous prime is 100401439981. The next prime is 100401440039. The reversal of 100401440023 is 320044104001.

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 100401440023 - 2⁹ = 100401439511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100401440053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114875353 + ... + 114876226.

It is an arithmetic number, because the mean of its divisors is an integer number (13785094800).

Almost surely, 2^100401440023 is an apocalyptic number.

100401440023 is a deficient number, since it is larger than the sum of its proper divisors (9879318377).

100401440023 is a wasteful number, since it uses less digits than its factorization.

100401440023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229751621.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 100401440023 its reverse (320044104001), we get a palindrome (420445544024).

The spelling of 100401440023 in words is "one hundred billion, four hundred one million, four hundred forty thousand, twenty-three".