121230313 has 2 divisors, whose sum is σ = 121230314. Its totient is φ = 121230312.

The previous prime is 121230311. The next prime is 121230323. The reversal of 121230313 is 313032121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91929744 + 29300569 = 9588^2 + 5413^2 .

It is a cyclic number.

It is not a de Polignac number, because 121230313 - 2¹ = 121230311 is a prime.

Together with 121230311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121230311) 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 as a sum of consecutive naturals, namely, 60615156 + 60615157.

It is an arithmetic number, because the mean of its divisors is an integer number (60615157).

Almost surely, 2^121230313 is an apocalyptic number.

It is an amenable number.

121230313 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230313 is an equidigital number, since it uses as much as digits as its factorization.

121230313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 121230313 is about 11010.4637958626. The cubic root of 121230313 is about 494.9223603701.

Adding to 121230313 its reverse (313032121), we get a palindrome (434262434).

The spelling of 121230313 in words is "one hundred twenty-one million, two hundred thirty thousand, three hundred thirteen".