102102010103 has 4 divisors (see below), whose sum is σ = 102103456128. Its totient is φ = 102100564080.

The previous prime is 102102010061. The next prime is 102102010123. The reversal of 102102010103 is 301010201201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102102010103 - 2²⁰ = 102100961527 is a prime.

It is a super-2 number, since 2×102102010103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102010123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611351 + ... + 760232.

It is an arithmetic number, because the mean of its divisors is an integer number (25525864032).

Almost surely, 2^102102010103 is an apocalyptic number.

102102010103 is a deficient number, since it is larger than the sum of its proper divisors (1446025).

102102010103 is an equidigital number, since it uses as much as digits as its factorization.

102102010103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446024.

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

Adding to 102102010103 its reverse (301010201201), we get a palindrome (403112211304).

The spelling of 102102010103 in words is "one hundred two billion, one hundred two million, ten thousand, one hundred three".