104240213121 has 16 divisors (see below), whose sum is σ = 151880456448. Its totient is φ = 63068250000.

The previous prime is 104240213113. The next prime is 104240213123. The reversal of 104240213121 is 121312042401.

It is not a de Polignac number, because 104240213121 - 2³ = 104240213113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104240213123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2671255 + ... + 2709996.

It is an arithmetic number, because the mean of its divisors is an integer number (9492528528).

Almost surely, 2^104240213121 is an apocalyptic number.

104240213121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104240213121 is a deficient number, since it is larger than the sum of its proper divisors (47640243327).

104240213121 is a wasteful number, since it uses less digits than its factorization.

104240213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381852.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 104240213121 its reverse (121312042401), we get a palindrome (225552255522).

The spelling of 104240213121 in words is "one hundred four billion, two hundred forty million, two hundred thirteen thousand, one hundred twenty-one".