43100420189 has 2 divisors, whose sum is σ = 43100420190. Its totient is φ = 43100420188.

The previous prime is 43100420101. The next prime is 43100420203. The reversal of 43100420189 is 98102400134.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23350896100 + 19749524089 = 152810^2 + 140533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43100420189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43100420089) 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, 21550210094 + 21550210095.

It is an arithmetic number, because the mean of its divisors is an integer number (21550210095).

Almost surely, 2^43100420189 is an apocalyptic number.

It is an amenable number.

43100420189 is a deficient number, since it is larger than the sum of its proper divisors (1).

43100420189 is an equidigital number, since it uses as much as digits as its factorization.

43100420189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 43100420189 in words is "forty-three billion, one hundred million, four hundred twenty thousand, one hundred eighty-nine".