121101110023 has 2 divisors, whose sum is σ = 121101110024. Its totient is φ = 121101110022.

The previous prime is 121101110021. The next prime is 121101110047. The reversal of 121101110023 is 320011101121.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (320011101121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121101110023 - 2¹ = 121101110021 is a prime.

Together with 121101110021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 121101109985 and 121101110012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121101110021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550555011 + 60550555012.

It is an arithmetic number, because the mean of its divisors is an integer number (60550555012).

Almost surely, 2^121101110023 is an apocalyptic number.

121101110023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101110023 is an equidigital number, since it uses as much as digits as its factorization.

121101110023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121101110023 its reverse (320011101121), we get a palindrome (441112211144).

The spelling of 121101110023 in words is "one hundred twenty-one billion, one hundred one million, one hundred ten thousand, twenty-three".