211121100110023 has 2 divisors, whose sum is σ = 211121100110024. Its totient is φ = 211121100110022.

The previous prime is 211121100110017. The next prime is 211121100110029. The reversal of 211121100110023 is 320011001121112.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (211121100110017) and next prime (211121100110029).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211121100110023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211121100109979 and 211121100110006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211121100110029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560550055011 + 105560550055012.

It is an arithmetic number, because the mean of its divisors is an integer number (105560550055012).

Almost surely, 2^{211121100110023} is an apocalyptic number.

211121100110023 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121100110023 is an equidigital number, since it uses as much as digits as its factorization.

211121100110023 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 16.

Adding to 211121100110023 its reverse (320011001121112), we get a palindrome (531132101231135).

The spelling of 211121100110023 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred million, one hundred ten thousand, twenty-three".