999102102111 has 6 divisors (see below), whose sum is σ = 1443147480840. Its totient is φ = 666068068068.

The previous prime is 999102102071. The next prime is 999102102151. The reversal of 999102102111 is 111201201999.

It is an interprime number because it is at equal distance from previous prime (999102102071) and next prime (999102102151).

It is not a de Polignac number, because 999102102111 - 2¹⁴ = 999102085727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999102102151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55505672331 + ... + 55505672348.

It is an arithmetic number, because the mean of its divisors is an integer number (240524580140).

Almost surely, 2^999102102111 is an apocalyptic number.

999102102111 is a deficient number, since it is larger than the sum of its proper divisors (444045378729).

999102102111 is a wasteful number, since it uses less digits than its factorization.

999102102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111011344685 (or 111011344682 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 36.

The spelling of 999102102111 in words is "nine hundred ninety-nine billion, one hundred two million, one hundred two thousand, one hundred eleven".