121311133303 has 2 divisors, whose sum is σ = 121311133304. Its totient is φ = 121311133302.

The previous prime is 121311133301. The next prime is 121311133319. The reversal of 121311133303 is 303331113121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121311133303 - 2¹ = 121311133301 is a prime.

Together with 121311133301, 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 (121311133301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60655566651 + 60655566652.

It is an arithmetic number, because the mean of its divisors is an integer number (60655566652).

Almost surely, 2^121311133303 is an apocalyptic number.

121311133303 is a deficient number, since it is larger than the sum of its proper divisors (1).

121311133303 is an equidigital number, since it uses as much as digits as its factorization.

121311133303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 121311133303 its reverse (303331113121), we get a palindrome (424642246424).

The spelling of 121311133303 in words is "one hundred twenty-one billion, three hundred eleven million, one hundred thirty-three thousand, three hundred three".