43243540127 has 2 divisors, whose sum is σ = 43243540128. Its totient is φ = 43243540126.

The previous prime is 43243540121. The next prime is 43243540133. The reversal of 43243540127 is 72104534234.

It is a balanced prime because it is at equal distance from previous prime (43243540121) and next prime (43243540133).

It is a cyclic number.

It is not a de Polignac number, because 43243540127 - 2¹⁰ = 43243539103 is a prime.

It is a super-2 number, since 2×43243540127² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43243540121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621770063 + 21621770064.

It is an arithmetic number, because the mean of its divisors is an integer number (21621770064).

Almost surely, 2^43243540127 is an apocalyptic number.

43243540127 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243540127 is an equidigital number, since it uses as much as digits as its factorization.

43243540127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 43243540127 in words is "forty-three billion, two hundred forty-three million, five hundred forty thousand, one hundred twenty-seven".