104515521121 has 4 divisors (see below), whose sum is σ = 114016932144. Its totient is φ = 95014110100.

The previous prime is 104515521109. The next prime is 104515521137. The reversal of 104515521121 is 121125515401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104515521121 - 2²⁵ = 104481966689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104515521121.

It is not an unprimeable number, because it can be changed into a prime (104515521101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4750705495 + ... + 4750705516.

It is an arithmetic number, because the mean of its divisors is an integer number (28504233036).

Almost surely, 2^104515521121 is an apocalyptic number.

104515521121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104515521121 is a deficient number, since it is larger than the sum of its proper divisors (9501411023).

104515521121 is an equidigital number, since it uses as much as digits as its factorization.

104515521121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9501411022.

The product of its (nonzero) digits is 2000, while the sum is 28.

The spelling of 104515521121 in words is "one hundred four billion, five hundred fifteen million, five hundred twenty-one thousand, one hundred twenty-one".