121020110023 has 2 divisors, whose sum is σ = 121020110024. Its totient is φ = 121020110022.

The previous prime is 121020110021. The next prime is 121020110039. The reversal of 121020110023 is 320011020121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121020110023 - 2¹ = 121020110021 is a prime.

It is a super-3 number, since 3×121020110023³ (a number of 34 digits) contains 333 as substring.

Together with 121020110021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 121020109985 and 121020110012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020110021) 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, 60510055011 + 60510055012.

It is an arithmetic number, because the mean of its divisors is an integer number (60510055012).

Almost surely, 2^121020110023 is an apocalyptic number.

121020110023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020110023 is an equidigital number, since it uses as much as digits as its factorization.

121020110023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121020110023 its reverse (320011020121), we get a palindrome (441031130144).

The spelling of 121020110023 in words is "one hundred twenty-one billion, twenty million, one hundred ten thousand, twenty-three".