2125817923 has 2 divisors, whose sum is σ = 2125817924. Its totient is φ = 2125817922.

The previous prime is 2125817917. The next prime is 2125817933. The reversal of 2125817923 is 3297185212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2125817923 - 2¹³ = 2125809731 is a prime.

It is not a weakly prime, because it can be changed into another prime (2125817933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062908961 + 1062908962.

It is an arithmetic number, because the mean of its divisors is an integer number (1062908962).

Almost surely, 2^2125817923 is an apocalyptic number.

2125817923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125817923 is an equidigital number, since it uses as much as digits as its factorization.

2125817923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 2125817923 is about 46106.5930534886. The cubic root of 2125817923 is about 1285.8057240019.

The spelling of 2125817923 in words is "two billion, one hundred twenty-five million, eight hundred seventeen thousand, nine hundred twenty-three".