104434021231 has 4 divisors (see below), whose sum is σ = 104453319832. Its totient is φ = 104414722632.

The previous prime is 104434021229. The next prime is 104434021261. The reversal of 104434021231 is 132120434401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104434021231 - 2¹ = 104434021229 is a prime.

It is a super-2 number, since 2×104434021231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104434021196 and 104434021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104434021261) 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 3 ways as a sum of consecutive naturals, for example, 9641181 + ... + 9652006.

It is an arithmetic number, because the mean of its divisors is an integer number (26113329958).

Almost surely, 2^104434021231 is an apocalyptic number.

104434021231 is a deficient number, since it is larger than the sum of its proper divisors (19298601).

104434021231 is an equidigital number, since it uses as much as digits as its factorization.

104434021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19298600.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 104434021231 its reverse (132120434401), we get a palindrome (236554455632).

The spelling of 104434021231 in words is "one hundred four billion, four hundred thirty-four million, twenty-one thousand, two hundred thirty-one".