102111107643 has 12 divisors (see below), whose sum is σ = 147498147888. Its totient is φ = 68072075280.

The previous prime is 102111107641. The next prime is 102111107653. The reversal of 102111107643 is 346701111201.

102111107643 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 1 + 1 + 10 + 7 + 643 = 666.

It is not a de Polignac number, because 102111107643 - 2¹ = 102111107641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102111107641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200013 + ... + 494193.

It is an arithmetic number, because the mean of its divisors is an integer number (12291512324).

Almost surely, 2^102111107643 is an apocalyptic number.

102111107643 is a deficient number, since it is larger than the sum of its proper divisors (45387040245).

102111107643 is a wasteful number, since it uses less digits than its factorization.

102111107643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332754 (or 332751 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

Adding to 102111107643 its reverse (346701111201), we get a palindrome (448812218844).

The spelling of 102111107643 in words is "one hundred two billion, one hundred eleven million, one hundred seven thousand, six hundred forty-three".