302400121 has 2 divisors, whose sum is σ = 302400122. Its totient is φ = 302400120.

The previous prime is 302400101. The next prime is 302400151. The reversal of 302400121 is 121004203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300536896 + 1863225 = 17336^2 + 1365^2 .

It is a cyclic number.

It is not a de Polignac number, because 302400121 - 2¹⁵ = 302367353 is a prime.

It is not a weakly prime, because it can be changed into another prime (302400101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151200060 + 151200061.

It is an arithmetic number, because the mean of its divisors is an integer number (151200061).

Almost surely, 2^302400121 is an apocalyptic number.

It is an amenable number.

302400121 is a deficient number, since it is larger than the sum of its proper divisors (1).

302400121 is an equidigital number, since it uses as much as digits as its factorization.

302400121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 302400121 is about 17389.6555745075. The cubic root of 302400121 is about 671.2134547735.

Adding to 302400121 its reverse (121004203), we get a palindrome (423404324).

The spelling of 302400121 in words is "three hundred two million, four hundred thousand, one hundred twenty-one".