102111203 has 2 divisors, whose sum is σ = 102111204. Its totient is φ = 102111202.

The previous prime is 102111199. The next prime is 102111239. The reversal of 102111203 is 302111201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102111203 - 2² = 102111199 is a prime.

It is not a weakly prime, because it can be changed into another prime (102111293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055601 + 51055602.

It is an arithmetic number, because the mean of its divisors is an integer number (51055602).

Almost surely, 2^102111203 is an apocalyptic number.

102111203 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111203 is an equidigital number, since it uses as much as digits as its factorization.

102111203 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 102111203 is about 10105.0088075172. The cubic root of 102111203 is about 467.4026075634.

Adding to 102111203 its reverse (302111201), we get a palindrome (404222404).

The spelling of 102111203 in words is "one hundred two million, one hundred eleven thousand, two hundred three".