303143420121 has 4 divisors (see below), whose sum is σ = 404191226832. Its totient is φ = 202095613412.

The previous prime is 303143420089. The next prime is 303143420161. The reversal of 303143420121 is 121024341303.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 303143420121 - 2⁵ = 303143420089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 303143420091 and 303143420100.

It is not an unprimeable number, because it can be changed into a prime (303143420161) 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, 50523903351 + ... + 50523903356.

It is an arithmetic number, because the mean of its divisors is an integer number (101047806708).

Almost surely, 2^303143420121 is an apocalyptic number.

It is an amenable number.

303143420121 is a deficient number, since it is larger than the sum of its proper divisors (101047806711).

303143420121 is a wasteful number, since it uses less digits than its factorization.

303143420121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101047806710.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 303143420121 its reverse (121024341303), we get a palindrome (424167761424).

The spelling of 303143420121 in words is "three hundred three billion, one hundred forty-three million, four hundred twenty thousand, one hundred twenty-one".