104145021321 has 16 divisors (see below), whose sum is σ = 151615104960. Its totient is φ = 63063429120.

The previous prime is 104145021313. The next prime is 104145021349. The reversal of 104145021321 is 123120541401.

It is not a de Polignac number, because 104145021321 - 2³ = 104145021313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104145021291 and 104145021300.

It is not an unprimeable number, because it can be changed into a prime (104145021371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330516 + ... + 1406613.

It is an arithmetic number, because the mean of its divisors is an integer number (9475944060).

Almost surely, 2^104145021321 is an apocalyptic number.

104145021321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104145021321 is a deficient number, since it is larger than the sum of its proper divisors (47470083639).

104145021321 is a wasteful number, since it uses less digits than its factorization.

104145021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738296.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 104145021321 its reverse (123120541401), we get a palindrome (227265562722).

The spelling of 104145021321 in words is "one hundred four billion, one hundred forty-five million, twenty-one thousand, three hundred twenty-one".