303144342121 has 2 divisors, whose sum is σ = 303144342122. Its totient is φ = 303144342120.

The previous prime is 303144342107. The next prime is 303144342131. The reversal of 303144342121 is 121243441303.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152802810000 + 150341532121 = 390900^2 + 387739^2 .

It is a cyclic number.

It is not a de Polignac number, because 303144342121 - 2⁷ = 303144341993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 303144342121.

It is not a weakly prime, because it can be changed into another prime (303144342131) 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 as a sum of consecutive naturals, namely, 151572171060 + 151572171061.

It is an arithmetic number, because the mean of its divisors is an integer number (151572171061).

Almost surely, 2^303144342121 is an apocalyptic number.

It is an amenable number.

303144342121 is a deficient number, since it is larger than the sum of its proper divisors (1).

303144342121 is an equidigital number, since it uses as much as digits as its factorization.

303144342121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 303144342121 its reverse (121243441303), we get a palindrome (424387783424).

The spelling of 303144342121 in words is "three hundred three billion, one hundred forty-four million, three hundred forty-two thousand, one hundred twenty-one".