20121201301 has 4 divisors (see below), whose sum is σ = 20127141900. Its totient is φ = 20115260704.

The previous prime is 20121201281. The next prime is 20121201313. The reversal of 20121201301 is 10310212102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10310212102 = 2 ⋅5155106051.

It can be written as a sum of positive squares in 2 ways, for example, as 19543760401 + 577440900 = 139799^2 + 24030^2 .

It is a cyclic number.

It is not a de Polignac number, because 20121201301 - 2⁹ = 20121200789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121201701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965216 + ... + 2971993.

It is an arithmetic number, because the mean of its divisors is an integer number (5031785475).

Almost surely, 2^20121201301 is an apocalyptic number.

It is an amenable number.

20121201301 is a deficient number, since it is larger than the sum of its proper divisors (5940599).

20121201301 is an equidigital number, since it uses as much as digits as its factorization.

20121201301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940598.

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

Adding to 20121201301 its reverse (10310212102), we get a palindrome (30431413403).

The spelling of 20121201301 in words is "twenty billion, one hundred twenty-one million, two hundred one thousand, three hundred one".