100443432013 has 4 divisors (see below), whose sum is σ = 100969314048. Its totient is φ = 99917549980.

The previous prime is 100443432007. The next prime is 100443432091. The reversal of 100443432013 is 310234344001.

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: 310234344001 = 1039 ⋅298589359.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100443432013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100443432613) 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, 262940731 + ... + 262941112.

It is an arithmetic number, because the mean of its divisors is an integer number (25242328512).

Almost surely, 2^100443432013 is an apocalyptic number.

It is an amenable number.

100443432013 is a deficient number, since it is larger than the sum of its proper divisors (525882035).

100443432013 is an equidigital number, since it uses as much as digits as its factorization.

100443432013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525882034.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 100443432013 its reverse (310234344001), we get a palindrome (410677776014).

The spelling of 100443432013 in words is "one hundred billion, four hundred forty-three million, four hundred thirty-two thousand, thirteen".