303142002121 has 4 divisors (see below), whose sum is σ = 346448002432. Its totient is φ = 259836001812.

The previous prime is 303142002089. The next prime is 303142002131. The reversal of 303142002121 is 121200241303.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121200241303 = 17 ⋅7129425959.

It is a cyclic number.

It is not a de Polignac number, because 303142002121 - 2⁵ = 303142002089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (303142002131) 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, 21653000145 + ... + 21653000158.

It is an arithmetic number, because the mean of its divisors is an integer number (86612000608).

Almost surely, 2^303142002121 is an apocalyptic number.

It is an amenable number.

303142002121 is a deficient number, since it is larger than the sum of its proper divisors (43306000311).

303142002121 is an equidigital number, since it uses as much as digits as its factorization.

303142002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43306000310.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 303142002121 its reverse (121200241303), we get a palindrome (424342243424).

The spelling of 303142002121 in words is "three hundred three billion, one hundred forty-two million, two thousand, one hundred twenty-one".