102011201111 has 16 divisors (see below), whose sum is σ = 103442328000. Its totient is φ = 100590336000.

The previous prime is 102011201107. The next prime is 102011201161. The reversal of 102011201111 is 111102110201.

It is a cyclic number.

It is not a de Polignac number, because 102011201111 - 2² = 102011201107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102011201092 and 102011201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011201161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20601686 + ... + 20606636.

It is an arithmetic number, because the mean of its divisors is an integer number (6465145500).

Almost surely, 2^102011201111 is an apocalyptic number.

102011201111 is a deficient number, since it is larger than the sum of its proper divisors (1431126889).

102011201111 is a wasteful number, since it uses less digits than its factorization.

102011201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5930.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102011201111 its reverse (111102110201), we get a palindrome (213113311312).

The spelling of 102011201111 in words is "one hundred two billion, eleven million, two hundred one thousand, one hundred eleven".