102000211111 has 4 divisors (see below), whose sum is σ = 105517459800. Its totient is φ = 98482962424.

The previous prime is 102000211073. The next prime is 102000211139. The reversal of 102000211111 is 111112000201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111112000201 = 31 ⋅3584258071.

It is a cyclic number.

It is not a de Polignac number, because 102000211111 - 2¹⁹ = 101999686823 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 (102000211811) 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, 1758624301 + ... + 1758624358.

It is an arithmetic number, because the mean of its divisors is an integer number (26379364950).

Almost surely, 2^102000211111 is an apocalyptic number.

102000211111 is a deficient number, since it is larger than the sum of its proper divisors (3517248689).

102000211111 is an equidigital number, since it uses as much as digits as its factorization.

102000211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517248688.

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

Adding to 102000211111 its reverse (111112000201), we get a palindrome (213112211312).

The spelling of 102000211111 in words is "one hundred two billion, two hundred eleven thousand, one hundred eleven".