102111231103 has 4 divisors (see below), whose sum is σ = 116698549840. Its totient is φ = 87523912368.

The previous prime is 102111230993. The next prime is 102111231109. The reversal of 102111231103 is 301132111201.

It is a happy number.

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 102111231103 - 2⁹ = 102111230591 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 (102111231109) 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, 7293659358 + ... + 7293659371.

It is an arithmetic number, because the mean of its divisors is an integer number (29174637460).

Almost surely, 2^102111231103 is an apocalyptic number.

102111231103 is a deficient number, since it is larger than the sum of its proper divisors (14587318737).

102111231103 is an equidigital number, since it uses as much as digits as its factorization.

102111231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14587318736.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 102111231103 its reverse (301132111201), we get a palindrome (403243342304).

The spelling of 102111231103 in words is "one hundred two billion, one hundred eleven million, two hundred thirty-one thousand, one hundred three".