204040131100811 has 2 divisors, whose sum is σ = 204040131100812. Its totient is φ = 204040131100810.

The previous prime is 204040131100769. The next prime is 204040131100877. The reversal of 204040131100811 is 118001131040402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204040131100811 - 2¹⁰ = 204040131099787 is a prime.

It is a super-2 number, since 2×204040131100811² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204040131103811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102020065550405 + 102020065550406.

It is an arithmetic number, because the mean of its divisors is an integer number (102020065550406).

Almost surely, 2^{204040131100811} is an apocalyptic number.

204040131100811 is a deficient number, since it is larger than the sum of its proper divisors (1).

204040131100811 is an equidigital number, since it uses as much as digits as its factorization.

204040131100811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 26.

The spelling of 204040131100811 in words is "two hundred four trillion, forty billion, one hundred thirty-one million, one hundred thousand, eight hundred eleven".