40205133122305 has 4 divisors (see below), whose sum is σ = 48246159746772. Its totient is φ = 32164106497840.

The previous prime is 40205133122267. The next prime is 40205133122353. The reversal of 40205133122305 is 50322133150204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22327051972801 + 17878081149504 = 4725151^2 + 4228248^2 .

It is not a de Polignac number, because 40205133122305 - 2⁹ = 40205133121793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4020513312226 + ... + 4020513312235.

It is an arithmetic number, because the mean of its divisors is an integer number (12061539936693).

Almost surely, 2^{40205133122305} is an apocalyptic number.

It is an amenable number.

40205133122305 is a deficient number, since it is larger than the sum of its proper divisors (8041026624467).

40205133122305 is an equidigital number, since it uses as much as digits as its factorization.

40205133122305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8041026624466.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 40205133122305 its reverse (50322133150204), we get a palindrome (90527266272509).

The spelling of 40205133122305 in words is "forty trillion, two hundred five billion, one hundred thirty-three million, one hundred twenty-two thousand, three hundred five".