102102001111 has 18 divisors (see below), whose sum is σ = 116231305736. Its totient is φ = 89619222000.

The previous prime is 102102001093. The next prime is 102102001123. The reversal of 102102001111 is 111100201201.

It is not a de Polignac number, because 102102001111 - 2⁷ = 102102000983 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 (102102001711) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 399915 + ... + 603436.

Almost surely, 2^102102001111 is an apocalyptic number.

102102001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102102001111 is a deficient number, since it is larger than the sum of its proper divisors (14129304625).

102102001111 is a wasteful number, since it uses less digits than its factorization.

102102001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003431 (or 1003391 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 102102001111 its reverse (111100201201), we get a palindrome (213202202312).

The spelling of 102102001111 in words is "one hundred two billion, one hundred two million, one thousand, one hundred eleven".