20000143091 has 2 divisors, whose sum is σ = 20000143092. Its totient is φ = 20000143090.

The previous prime is 20000143043. The next prime is 20000143127. The reversal of 20000143091 is 19034100002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20000143091 - 2²⁶ = 19933034227 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000143021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000071545 + 10000071546.

It is an arithmetic number, because the mean of its divisors is an integer number (10000071546).

Almost surely, 2^20000143091 is an apocalyptic number.

20000143091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000143091 is an equidigital number, since it uses as much as digits as its factorization.

20000143091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20000143091 its reverse (19034100002), we get a palindrome (39034243093).

The spelling of 20000143091 in words is "twenty billion, one hundred forty-three thousand, ninety-one".