43042161983 has 2 divisors, whose sum is σ = 43042161984. Its totient is φ = 43042161982.

The previous prime is 43042161893. The next prime is 43042162001. The reversal of 43042161983 is 38916124034.

Together with previous prime (43042161893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43042161983 - 2¹⁴ = 43042145599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43042161983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43042161083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21521080991 + 21521080992.

It is an arithmetic number, because the mean of its divisors is an integer number (21521080992).

Almost surely, 2^43042161983 is an apocalyptic number.

43042161983 is a deficient number, since it is larger than the sum of its proper divisors (1).

43042161983 is an equidigital number, since it uses as much as digits as its factorization.

43042161983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 43042161983 in words is "forty-three billion, forty-two million, one hundred sixty-one thousand, nine hundred eighty-three".