212111100023 has 2 divisors, whose sum is σ = 212111100024. Its totient is φ = 212111100022.

The previous prime is 212111099933. The next prime is 212111100041. The reversal of 212111100023 is 320001111212.

212111100023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212111100023 - 2¹⁸ = 212110837879 is a prime.

It is a super-2 number, since 2×212111100023² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212111099980 and 212111100007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212111100073) 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, 106055550011 + 106055550012.

It is an arithmetic number, because the mean of its divisors is an integer number (106055550012).

Almost surely, 2^212111100023 is an apocalyptic number.

212111100023 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111100023 is an equidigital number, since it uses as much as digits as its factorization.

212111100023 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 14.

Adding to 212111100023 its reverse (320001111212), we get a palindrome (532112211235).

The spelling of 212111100023 in words is "two hundred twelve billion, one hundred eleven million, one hundred thousand, twenty-three".