20203112011 has 2 divisors, whose sum is σ = 20203112012. Its totient is φ = 20203112010.

The previous prime is 20203111991. The next prime is 20203112023. The reversal of 20203112011 is 11021130202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20203112011 - 2⁷ = 20203111883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203111982 and 20203112000.

It is not a weakly prime, because it can be changed into another prime (20203112081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101556005 + 10101556006.

It is an arithmetic number, because the mean of its divisors is an integer number (10101556006).

Almost surely, 2^20203112011 is an apocalyptic number.

20203112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203112011 is an equidigital number, since it uses as much as digits as its factorization.

20203112011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20203112011 its reverse (11021130202), we get a palindrome (31224242213).

The spelling of 20203112011 in words is "twenty billion, two hundred three million, one hundred twelve thousand, eleven".