104002023121 has 4 divisors (see below), whose sum is σ = 104002735012. Its totient is φ = 104001311232.

The previous prime is 104002023089. The next prime is 104002023137. The reversal of 104002023121 is 121320200401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 121320200401 = 85363 ⋅1421227.

It can be written as a sum of positive squares in 2 ways, for example, as 92803092496 + 11198930625 = 304636^2 + 105825^2 .

It is a cyclic number.

It is not a de Polignac number, because 104002023121 - 2⁵ = 104002023089 is a prime.

It is a super-2 number, since 2×104002023121² (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 = 104002023095 and 104002023104.

It is not an unprimeable number, because it can be changed into a prime (104002023421) 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, 48000 + ... + 458593.

It is an arithmetic number, because the mean of its divisors is an integer number (26000683753).

Almost surely, 2^104002023121 is an apocalyptic number.

It is an amenable number.

104002023121 is a deficient number, since it is larger than the sum of its proper divisors (711891).

104002023121 is an equidigital number, since it uses as much as digits as its factorization.

104002023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711890.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 104002023121 its reverse (121320200401), we get a palindrome (225322223522).

The spelling of 104002023121 in words is "one hundred four billion, two million, twenty-three thousand, one hundred twenty-one".