2102101223 has 2 divisors, whose sum is σ = 2102101224. Its totient is φ = 2102101222.

The previous prime is 2102101219. The next prime is 2102101231. The reversal of 2102101223 is 3221012012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102101223 - 2² = 2102101219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102101198 and 2102101207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102101213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051050611 + 1051050612.

It is an arithmetic number, because the mean of its divisors is an integer number (1051050612).

Almost surely, 2^2102101223 is an apocalyptic number.

2102101223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102101223 is an equidigital number, since it uses as much as digits as its factorization.

2102101223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2102101223 is about 45848.6774400309. The cubic root of 2102101223 is about 1281.0061309309.

Adding to 2102101223 its reverse (3221012012), we get a palindrome (5323113235).

The spelling of 2102101223 in words is "two billion, one hundred two million, one hundred one thousand, two hundred twenty-three".