40243101345553 has 2 divisors, whose sum is σ = 40243101345554. Its totient is φ = 40243101345552.

The previous prime is 40243101345541. The next prime is 40243101345571. The reversal of 40243101345553 is 35554310134204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36222787620369 + 4020313725184 = 6018537^2 + 2005072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40243101345553 is a prime.

It is a super-2 number, since 2×40243101345553² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40243101345053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121550672776 + 20121550672777.

It is an arithmetic number, because the mean of its divisors is an integer number (20121550672777).

Almost surely, 2^{40243101345553} is an apocalyptic number.

It is an amenable number.

40243101345553 is a deficient number, since it is larger than the sum of its proper divisors (1).

40243101345553 is an equidigital number, since it uses as much as digits as its factorization.

40243101345553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 40243101345553 its reverse (35554310134204), we get a palindrome (75797411479757).

The spelling of 40243101345553 in words is "forty trillion, two hundred forty-three billion, one hundred one million, three hundred forty-five thousand, five hundred fifty-three".