20411091073 has 2 divisors, whose sum is σ = 20411091074. Its totient is φ = 20411091072.

The previous prime is 20411091067. The next prime is 20411091121. The reversal of 20411091073 is 37019011402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10206656784 + 10204434289 = 101028^2 + 101017^2 .

It is a cyclic number.

It is not a de Polignac number, because 20411091073 - 2¹⁷ = 20410960001 is a prime.

It is a super-2 number, since 2×20411091073² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20411091053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205545536 + 10205545537.

It is an arithmetic number, because the mean of its divisors is an integer number (10205545537).

Almost surely, 2^20411091073 is an apocalyptic number.

It is an amenable number.

20411091073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411091073 is an equidigital number, since it uses as much as digits as its factorization.

20411091073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 20411091073 in words is "twenty billion, four hundred eleven million, ninety-one thousand, seventy-three".