102003111011 has 4 divisors (see below), whose sum is σ = 102024990672. Its totient is φ = 101981231352.

The previous prime is 102003110999. The next prime is 102003111083. The reversal of 102003111011 is 110111300201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102003111011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102003110983 and 102003111001.

It is not an unprimeable number, because it can be changed into a prime (102003111811) 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, 10932836 + ... + 10942161.

It is an arithmetic number, because the mean of its divisors is an integer number (25506247668).

Almost surely, 2^102003111011 is an apocalyptic number.

102003111011 is a deficient number, since it is larger than the sum of its proper divisors (21879661).

102003111011 is an equidigital number, since it uses as much as digits as its factorization.

102003111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21879660.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 102003111011 its reverse (110111300201), we get a palindrome (212114411212).

The spelling of 102003111011 in words is "one hundred two billion, three million, one hundred eleven thousand, eleven".