104451131221044 has 96 divisors (see below), whose sum is σ = 251456680083840. Its totient is φ = 33725635227648.

The previous prime is 104451131221043. The next prime is 104451131221049. The reversal of 104451131221044 is 440122131154401.

It is a junction number, because it is equal to n+sod(n) for n = 104451131220996 and 104451131221014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104451131221043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70596042 + ... + 72060414.

It is an arithmetic number, because the mean of its divisors is an integer number (2619340417540).

Almost surely, 2^{104451131221044} is an apocalyptic number.

It is an amenable number.

104451131221044 is an abundant number, since it is smaller than the sum of its proper divisors (147005548862796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104451131221044 is a wasteful number, since it uses less digits than its factorization.

104451131221044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465569 (or 1465567 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

Adding to 104451131221044 its reverse (440122131154401), we get a palindrome (544573262375445).

The spelling of 104451131221044 in words is "one hundred four trillion, four hundred fifty-one billion, one hundred thirty-one million, two hundred twenty-one thousand, forty-four".