102203111 has 2 divisors, whose sum is σ = 102203112. Its totient is φ = 102203110.

The previous prime is 102203069. The next prime is 102203149. The reversal of 102203111 is 111302201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102203111 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102203092 and 102203101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102205111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51101555 + 51101556.

It is an arithmetic number, because the mean of its divisors is an integer number (51101556).

Almost surely, 2^102203111 is an apocalyptic number.

102203111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102203111 is an equidigital number, since it uses as much as digits as its factorization.

102203111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 102203111 is about 10109.5554303837. Note that the first 3 decimals coincide. The cubic root of 102203111 is about 467.5427983734.

Adding to 102203111 its reverse (111302201), we get a palindrome (213505312).

It can be divided in two parts, 10220 and 3111, that added together give a palindrome (13331).

The spelling of 102203111 in words is "one hundred two million, two hundred three thousand, one hundred eleven".