20120300121 has 4 divisors (see below), whose sum is σ = 26827066832. Its totient is φ = 13413533412.

The previous prime is 20120300093. The next prime is 20120300141. The reversal of 20120300121 is 12100302102.

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 not a de Polignac number, because 20120300121 - 2⁹ = 20120299609 is a prime.

It is a super-3 number, since 3×20120300121³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20120300097 and 20120300106.

It is not an unprimeable number, because it can be changed into a prime (20120300141) 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, 3353383351 + ... + 3353383356.

It is an arithmetic number, because the mean of its divisors is an integer number (6706766708).

Almost surely, 2^20120300121 is an apocalyptic number.

It is an amenable number.

20120300121 is a deficient number, since it is larger than the sum of its proper divisors (6706766711).

20120300121 is an equidigital number, since it uses as much as digits as its factorization.

20120300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706766710.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20120300121 its reverse (12100302102), we get a palindrome (32220602223).

The spelling of 20120300121 in words is "twenty billion, one hundred twenty million, three hundred thousand, one hundred twenty-one".