104021021113 has 4 divisors (see below), whose sum is σ = 106832400100. Its totient is φ = 101209642128.

The previous prime is 104021021099. The next prime is 104021021119. The reversal of 104021021113 is 311120120401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66312430144 + 37708590969 = 257512^2 + 194187^2 .

It is a cyclic number.

It is not a de Polignac number, because 104021021113 - 2⁹ = 104021020601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104021021119) 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, 1405689438 + ... + 1405689511.

It is an arithmetic number, because the mean of its divisors is an integer number (26708100025).

Almost surely, 2^104021021113 is an apocalyptic number.

It is an amenable number.

104021021113 is a deficient number, since it is larger than the sum of its proper divisors (2811378987).

104021021113 is an equidigital number, since it uses as much as digits as its factorization.

104021021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811378986.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 104021021113 its reverse (311120120401), we get a palindrome (415141141514).

The spelling of 104021021113 in words is "one hundred four billion, twenty-one million, twenty-one thousand, one hundred thirteen".