102111021223 has 2 divisors, whose sum is σ = 102111021224. Its totient is φ = 102111021222.

The previous prime is 102111021217. The next prime is 102111021253. The reversal of 102111021223 is 322120111201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102111021223 - 2²⁹ = 101574150311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102111021197 and 102111021206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102111021253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055510611 + 51055510612.

It is an arithmetic number, because the mean of its divisors is an integer number (51055510612).

Almost surely, 2^102111021223 is an apocalyptic number.

102111021223 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111021223 is an equidigital number, since it uses as much as digits as its factorization.

102111021223 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 16.

Adding to 102111021223 its reverse (322120111201), we get a palindrome (424231132424).

The spelling of 102111021223 in words is "one hundred two billion, one hundred eleven million, twenty-one thousand, two hundred twenty-three".