2112102791 has 2 divisors, whose sum is σ = 2112102792. Its totient is φ = 2112102790.

The previous prime is 2112102787. The next prime is 2112102793. The reversal of 2112102791 is 1972012112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2112102791 - 2² = 2112102787 is a prime.

Together with 2112102793, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112102791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112102793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056051395 + 1056051396.

It is an arithmetic number, because the mean of its divisors is an integer number (1056051396).

Almost surely, 2^2112102791 is an apocalyptic number.

2112102791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112102791 is an equidigital number, since it uses as much as digits as its factorization.

2112102791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 2112102791 is about 45957.6195097179. The cubic root of 2112102791 is about 1283.0345464120.

The spelling of 2112102791 in words is "two billion, one hundred twelve million, one hundred two thousand, seven hundred ninety-one".