20110605943 has 2 divisors, whose sum is σ = 20110605944. Its totient is φ = 20110605942.

The previous prime is 20110605919. The next prime is 20110605947. The reversal of 20110605943 is 34950601102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20110605943 - 2¹⁷ = 20110474871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110605947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055302971 + 10055302972.

It is an arithmetic number, because the mean of its divisors is an integer number (10055302972).

Almost surely, 2^20110605943 is an apocalyptic number.

20110605943 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110605943 is an equidigital number, since it uses as much as digits as its factorization.

20110605943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 20110605943 in words is "twenty billion, one hundred ten million, six hundred five thousand, nine hundred forty-three".