2125386811 has 2 divisors, whose sum is σ = 2125386812. Its totient is φ = 2125386810.

The previous prime is 2125386719. The next prime is 2125386821. The reversal of 2125386811 is 1186835212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2125386811 - 2¹⁷ = 2125255739 is a prime.

It is not a weakly prime, because it can be changed into another prime (2125386821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062693405 + 1062693406.

It is an arithmetic number, because the mean of its divisors is an integer number (1062693406).

Almost surely, 2^2125386811 is an apocalyptic number.

2125386811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125386811 is an equidigital number, since it uses as much as digits as its factorization.

2125386811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 37.

The square root of 2125386811 is about 46101.9176499199. The cubic root of 2125386811 is about 1285.7187984398.

The spelling of 2125386811 in words is "two billion, one hundred twenty-five million, three hundred eighty-six thousand, eight hundred eleven".