102100000043 has 2 divisors, whose sum is σ = 102100000044. Its totient is φ = 102100000042.

The previous prime is 102100000031. The next prime is 102100000063. The reversal of 102100000043 is 340000001201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102100000043 - 2²⁴ = 102083222827 is a prime.

It is not a weakly prime, because it can be changed into another prime (102100000063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050000021 + 51050000022.

It is an arithmetic number, because the mean of its divisors is an integer number (51050000022).

Almost surely, 2^102100000043 is an apocalyptic number.

102100000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100000043 is an equidigital number, since it uses as much as digits as its factorization.

102100000043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 102100000043 its reverse (340000001201), we get a palindrome (442100001244).

The spelling of 102100000043 in words is "one hundred two billion, one hundred million, forty-three", and thus it is an aban number.