12104021013 has 16 divisors (see below), whose sum is σ = 18820636800. Its totient is φ = 6916582848.

The previous prime is 12104020993. The next prime is 12104021047. The reversal of 12104021013 is 31012040121.

It is not a de Polignac number, because 12104021013 - 2⁶ = 12104020949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12104020983 and 12104021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104021053) 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, 5880420 + ... + 5882477.

It is an arithmetic number, because the mean of its divisors is an integer number (1176289800).

Almost surely, 2^12104021013 is an apocalyptic number.

It is an amenable number.

12104021013 is a deficient number, since it is larger than the sum of its proper divisors (6716615787).

12104021013 is an equidigital number, since it uses as much as digits as its factorization.

12104021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11762921 (or 11762907 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12104021013 its reverse (31012040121), we get a palindrome (43116061134).

The spelling of 12104021013 in words is "twelve billion, one hundred four million, twenty-one thousand, thirteen".