20000291011 has 2 divisors, whose sum is σ = 20000291012. Its totient is φ = 20000291010.

The previous prime is 20000290979. The next prime is 20000291027. The reversal of 20000291011 is 11019200002.

It is an a-pointer prime, because the next prime (20000291027) can be obtained adding 20000291011 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20000291011 - 2⁵ = 20000290979 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000291611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000145505 + 10000145506.

It is an arithmetic number, because the mean of its divisors is an integer number (10000145506).

Almost surely, 2^20000291011 is an apocalyptic number.

20000291011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000291011 is an equidigital number, since it uses as much as digits as its factorization.

20000291011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20000291011 its reverse (11019200002), we get a palindrome (31019491013).

The spelling of 20000291011 in words is "twenty billion, two hundred ninety-one thousand, eleven".