102120201223 has 2 divisors, whose sum is σ = 102120201224. Its totient is φ = 102120201222.

The previous prime is 102120201191. The next prime is 102120201229. The reversal of 102120201223 is 322102021201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102120201223 - 2⁵ = 102120201191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102120201197 and 102120201206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102120201229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060100611 + 51060100612.

It is an arithmetic number, because the mean of its divisors is an integer number (51060100612).

Almost surely, 2^102120201223 is an apocalyptic number.

102120201223 is a deficient number, since it is larger than the sum of its proper divisors (1).

102120201223 is an equidigital number, since it uses as much as digits as its factorization.

102120201223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102120201223 its reverse (322102021201), we get a palindrome (424222222424).

The spelling of 102120201223 in words is "one hundred two billion, one hundred twenty million, two hundred one thousand, two hundred twenty-three".