2130000043 has 2 divisors, whose sum is σ = 2130000044. Its totient is φ = 2130000042.

The previous prime is 2130000029. The next prime is 2130000137. The reversal of 2130000043 is 3400000312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130000043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2129999978 and 2130000032.

It is not a weakly prime, because it can be changed into another prime (2130004043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065000021 + 1065000022.

It is an arithmetic number, because the mean of its divisors is an integer number (1065000022).

Almost surely, 2^2130000043 is an apocalyptic number.

2130000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130000043 is an equidigital number, since it uses as much as digits as its factorization.

2130000043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2130000043 is about 46151.9235027100. The cubic root of 2130000043 is about 1286.6483598819.

Adding to 2130000043 its reverse (3400000312), we get a palindrome (5530000355).

The spelling of 2130000043 in words is "two billion, one hundred thirty million, forty-three", and thus it is an aban number.