102102120203 has 2 divisors, whose sum is σ = 102102120204. Its totient is φ = 102102120202.

The previous prime is 102102120199. The next prime is 102102120217. The reversal of 102102120203 is 302021201201.

It is a happy number.

It is an a-pointer prime, because the next prime (102102120217) can be obtained adding 102102120203 to its sum of digits (14).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102102120203 - 2² = 102102120199 is a prime.

It is a super-2 number, since 2×102102120203² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (102102120103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051060101 + 51051060102.

It is an arithmetic number, because the mean of its divisors is an integer number (51051060102).

Almost surely, 2^102102120203 is an apocalyptic number.

102102120203 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102120203 is an equidigital number, since it uses as much as digits as its factorization.

102102120203 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.

Adding to 102102120203 its reverse (302021201201), we get a palindrome (404123321404).

The spelling of 102102120203 in words is "one hundred two billion, one hundred two million, one hundred twenty thousand, two hundred three".