102031103 has 4 divisors (see below), whose sum is σ = 102057648. Its totient is φ = 102004560.

The previous prime is 102031091. The next prime is 102031129. The reversal of 102031103 is 301130201.

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 102031103 - 2⁴ = 102031087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6278 + ... + 15603.

It is an arithmetic number, because the mean of its divisors is an integer number (25514412).

Almost surely, 2^102031103 is an apocalyptic number.

102031103 is a deficient number, since it is larger than the sum of its proper divisors (26545).

102031103 is an equidigital number, since it uses as much as digits as its factorization.

102031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26544.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 102031103 is about 10101.0446489460. The cubic root of 102031103 is about 467.2803593296.

Adding to 102031103 its reverse (301130201), we get a palindrome (403161304).

It can be divided in two parts, 1020 and 31103, that added together give a palindrome (32123).

The spelling of 102031103 in words is "one hundred two million, thirty-one thousand, one hundred three".