20121013201 has 8 divisors (see below), whose sum is σ = 20164852008. Its totient is φ = 20077200000.

The previous prime is 20121013169. The next prime is 20121013207. The reversal of 20121013201 is 10231012102.

It can be written as a sum of positive squares in 4 ways, for example, as 10871190225 + 9249822976 = 104265^2 + 96176^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20121013201 - 2⁵ = 20121013169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121013207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2972661 + ... + 2979421.

It is an arithmetic number, because the mean of its divisors is an integer number (2520606501).

Almost surely, 2^20121013201 is an apocalyptic number.

It is an amenable number.

20121013201 is a deficient number, since it is larger than the sum of its proper divisors (43838807).

20121013201 is an equidigital number, since it uses as much as digits as its factorization.

20121013201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12803.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20121013201 its reverse (10231012102), we get a palindrome (30352025303).

The spelling of 20121013201 in words is "twenty billion, one hundred twenty-one million, thirteen thousand, two hundred one".