40204102213501 has 2 divisors, whose sum is σ = 40204102213502. Its totient is φ = 40204102213500.

The previous prime is 40204102213441. The next prime is 40204102213523. The reversal of 40204102213501 is 10531220140204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34677141012900 + 5526961200601 = 5888730^2 + 2350949^2 .

It is a cyclic number.

It is not a de Polignac number, because 40204102213501 - 2²³ = 40204093824893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40204102213201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20102051106750 + 20102051106751.

It is an arithmetic number, because the mean of its divisors is an integer number (20102051106751).

Almost surely, 2^{40204102213501} is an apocalyptic number.

It is an amenable number.

40204102213501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40204102213501 is an equidigital number, since it uses as much as digits as its factorization.

40204102213501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 40204102213501 its reverse (10531220140204), we get a palindrome (50735322353705).

The spelling of 40204102213501 in words is "forty trillion, two hundred four billion, one hundred two million, two hundred thirteen thousand, five hundred one".