43542124511 has 2 divisors, whose sum is σ = 43542124512. Its totient is φ = 43542124510.

The previous prime is 43542124469. The next prime is 43542124579. The reversal of 43542124511 is 11542124534.

43542124511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43542124511 is a prime.

It is a super-3 number, since 3×43542124511³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43542124111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21771062255 + 21771062256.

It is an arithmetic number, because the mean of its divisors is an integer number (21771062256).

Almost surely, 2^43542124511 is an apocalyptic number.

43542124511 is a deficient number, since it is larger than the sum of its proper divisors (1).

43542124511 is an equidigital number, since it uses as much as digits as its factorization.

43542124511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 32.

The spelling of 43542124511 in words is "forty-three billion, five hundred forty-two million, one hundred twenty-four thousand, five hundred eleven".