43242111061 has 2 divisors, whose sum is σ = 43242111062. Its totient is φ = 43242111060.

The previous prime is 43242111043. The next prime is 43242111103. The reversal of 43242111061 is 16011124234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43241123025 + 988036 = 207945^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 43242111061 - 2³³ = 34652176469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43242111161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621055530 + 21621055531.

It is an arithmetic number, because the mean of its divisors is an integer number (21621055531).

Almost surely, 2^43242111061 is an apocalyptic number.

It is an amenable number.

43242111061 is a deficient number, since it is larger than the sum of its proper divisors (1).

43242111061 is an equidigital number, since it uses as much as digits as its factorization.

43242111061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 43242111061 its reverse (16011124234), we get a palindrome (59253235295).

The spelling of 43242111061 in words is "forty-three billion, two hundred forty-two million, one hundred eleven thousand, sixty-one".