121113103220203 has 2 divisors, whose sum is σ = 121113103220204. Its totient is φ = 121113103220202.

The previous prime is 121113103220201. The next prime is 121113103220209. The reversal of 121113103220203 is 302022301311121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121113103220203 - 2¹ = 121113103220201 is a prime.

It is a super-2 number, since 2×121113103220203² (a number of 29 digits) contains 22 as substring.

Together with 121113103220201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121113103220201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556551610101 + 60556551610102.

It is an arithmetic number, because the mean of its divisors is an integer number (60556551610102).

Almost surely, 2^{121113103220203} is an apocalyptic number.

121113103220203 is a deficient number, since it is larger than the sum of its proper divisors (1).

121113103220203 is an equidigital number, since it uses as much as digits as its factorization.

121113103220203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121113103220203 its reverse (302022301311121), we get a palindrome (423135404531324).

The spelling of 121113103220203 in words is "one hundred twenty-one trillion, one hundred thirteen billion, one hundred three million, two hundred twenty thousand, two hundred three".