2181130192699 has 2 divisors, whose sum is σ = 2181130192700. Its totient is φ = 2181130192698.

The previous prime is 2181130192603. The next prime is 2181130192711. The reversal of 2181130192699 is 9962910311812.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2181130192699 is a prime.

It is not a weakly prime, because it can be changed into another prime (2181130192399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090565096349 + 1090565096350.

It is an arithmetic number, because the mean of its divisors is an integer number (1090565096350).

Almost surely, 2^{2181130192699} is an apocalyptic number.

2181130192699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2181130192699 is an equidigital number, since it uses as much as digits as its factorization.

2181130192699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 52.

The spelling of 2181130192699 in words is "two trillion, one hundred eighty-one billion, one hundred thirty million, one hundred ninety-two thousand, six hundred ninety-nine".