121201231303 has 2 divisors, whose sum is σ = 121201231304. Its totient is φ = 121201231302.

The previous prime is 121201231301. The next prime is 121201231339. The reversal of 121201231303 is 303132102121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121201231303 - 2¹ = 121201231301 is a prime.

Together with 121201231301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121201231301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600615651 + 60600615652.

It is an arithmetic number, because the mean of its divisors is an integer number (60600615652).

Almost surely, 2^121201231303 is an apocalyptic number.

121201231303 is a deficient number, since it is larger than the sum of its proper divisors (1).

121201231303 is an equidigital number, since it uses as much as digits as its factorization.

121201231303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121201231303 its reverse (303132102121), we get a palindrome (424333333424).

The spelling of 121201231303 in words is "one hundred twenty-one billion, two hundred one million, two hundred thirty-one thousand, three hundred three".