2130666111 has 48 divisors (see below), whose sum is σ = 3720677376. Its totient is φ = 1148577408.

The previous prime is 2130666107. The next prime is 2130666113. The reversal of 2130666111 is 1116660312.

It is not a de Polignac number, because 2130666111 - 2² = 2130666107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130666113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95706 + ... + 115848.

It is an arithmetic number, because the mean of its divisors is an integer number (77514112).

Almost surely, 2^2130666111 is an apocalyptic number.

2130666111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2130666111 is a deficient number, since it is larger than the sum of its proper divisors (1590011265).

2130666111 is a wasteful number, since it uses less digits than its factorization.

2130666111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20252 (or 20249 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 2130666111 is about 46159.1389759384. The cubic root of 2130666111 is about 1286.7824609724.

The spelling of 2130666111 in words is "two billion, one hundred thirty million, six hundred sixty-six thousand, one hundred eleven".