20120303121 has 8 divisors (see below), whose sum is σ = 27204917184. Its totient is φ = 13224612240.

The previous prime is 20120303107. The next prime is 20120303171. The reversal of 20120303121 is 12130302102.

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

It is not a de Polignac number, because 20120303121 - 2⁵ = 20120303089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20120303121.

It is not an unprimeable number, because it can be changed into a prime (20120303171) 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 7 ways as a sum of consecutive naturals, for example, 47230546 + ... + 47230971.

It is an arithmetic number, because the mean of its divisors is an integer number (3400614648).

Almost surely, 2^20120303121 is an apocalyptic number.

It is an amenable number.

20120303121 is a deficient number, since it is larger than the sum of its proper divisors (7084614063).

20120303121 is an equidigital number, since it uses as much as digits as its factorization.

20120303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94461591.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20120303121 its reverse (12130302102), we get a palindrome (32250605223).

The spelling of 20120303121 in words is "twenty billion, one hundred twenty million, three hundred three thousand, one hundred twenty-one".