102010001111 has 4 divisors (see below), whose sum is σ = 103020001224. Its totient is φ = 101000001000.

The previous prime is 102010001089. The next prime is 102010001141. The reversal of 102010001111 is 111100010201.

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 102010001111 - 2³⁰ = 100936259287 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 (102010001141) 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, 504999905 + ... + 505000106.

It is an arithmetic number, because the mean of its divisors is an integer number (25755000306).

Almost surely, 2^102010001111 is an apocalyptic number.

102010001111 is a deficient number, since it is larger than the sum of its proper divisors (1010000113).

102010001111 is a wasteful number, since it uses less digits than its factorization.

102010001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010000112.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 102010001111 its reverse (111100010201), we get a palindrome (213110011312).

The spelling of 102010001111 in words is "one hundred two billion, ten million, one thousand, one hundred eleven".