40243101345541 has 2 divisors, whose sum is σ = 40243101345542. Its totient is φ = 40243101345540.

The previous prime is 40243101345467. The next prime is 40243101345553. The reversal of 40243101345541 is 14554310134204.

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., 27334817649441 + 12908283696100 = 5228271^2 + 3592810^2 .

It is a cyclic number.

It is not a de Polignac number, because 40243101345541 - 2²³ = 40243092956933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40243101345541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40243101345571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121550672770 + 20121550672771.

It is an arithmetic number, because the mean of its divisors is an integer number (20121550672771).

Almost surely, 2^{40243101345541} is an apocalyptic number.

It is an amenable number.

40243101345541 is a deficient number, since it is larger than the sum of its proper divisors (1).

40243101345541 is an equidigital number, since it uses as much as digits as its factorization.

40243101345541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 40243101345541 its reverse (14554310134204), we get a palindrome (54797411479745).

The spelling of 40243101345541 in words is "forty trillion, two hundred forty-three billion, one hundred one million, three hundred forty-five thousand, five hundred forty-one".