121211202023 has 2 divisors, whose sum is σ = 121211202024. Its totient is φ = 121211202022.

The previous prime is 121211201971. The next prime is 121211202041. The reversal of 121211202023 is 320202112121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121211202023 - 2⁶ = 121211201959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121211201992 and 121211202010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121211202323) 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, 60605601011 + 60605601012.

It is an arithmetic number, because the mean of its divisors is an integer number (60605601012).

Almost surely, 2^121211202023 is an apocalyptic number.

121211202023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211202023 is an equidigital number, since it uses as much as digits as its factorization.

121211202023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121211202023 its reverse (320202112121), we get a palindrome (441413314144).

The spelling of 121211202023 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred two thousand, twenty-three".