102001100103 has 12 divisors (see below), whose sum is σ = 168382768528. Its totient is φ = 58286342880.

The previous prime is 102001100029. The next prime is 102001100137. The reversal of 102001100103 is 301001100201.

It is not a de Polignac number, because 102001100103 - 2⁸ = 102001099847 is a prime.

It is a super-2 number, since 2×102001100103² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001100303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809532478 + ... + 809532603.

Almost surely, 2^102001100103 is an apocalyptic number.

102001100103 is a deficient number, since it is larger than the sum of its proper divisors (66381668425).

102001100103 is a wasteful number, since it uses less digits than its factorization.

102001100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619065094 (or 1619065091 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 102001100103 its reverse (301001100201), we get a palindrome (403002200304).

The spelling of 102001100103 in words is "one hundred two billion, one million, one hundred thousand, one hundred three".