121312203107 has 2 divisors, whose sum is σ = 121312203108. Its totient is φ = 121312203106.

The previous prime is 121312203059. The next prime is 121312203119. The reversal of 121312203107 is 701302213121.

It is a strong prime.

It is an emirp because it is prime and its reverse (701302213121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121312203107 - 2¹⁰ = 121312202083 is a prime.

It is not a weakly prime, because it can be changed into another prime (121312203127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656101553 + 60656101554.

It is an arithmetic number, because the mean of its divisors is an integer number (60656101554).

Almost surely, 2^121312203107 is an apocalyptic number.

121312203107 is a deficient number, since it is larger than the sum of its proper divisors (1).

121312203107 is an equidigital number, since it uses as much as digits as its factorization.

121312203107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 121312203107 its reverse (701302213121), we get a palindrome (822614416228).

The spelling of 121312203107 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred three thousand, one hundred seven".