203120102011 has 2 divisors, whose sum is σ = 203120102012. Its totient is φ = 203120102010.

The previous prime is 203120101999. The next prime is 203120102033. The reversal of 203120102011 is 110201021302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203120102011 - 2⁵ = 203120101979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203120101982 and 203120102000.

It is not a weakly prime, because it can be changed into another prime (203120102411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101560051005 + 101560051006.

It is an arithmetic number, because the mean of its divisors is an integer number (101560051006).

Almost surely, 2^203120102011 is an apocalyptic number.

203120102011 is a deficient number, since it is larger than the sum of its proper divisors (1).

203120102011 is an equidigital number, since it uses as much as digits as its factorization.

203120102011 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 203120102011 its reverse (110201021302), we get a palindrome (313321123313).

The spelling of 203120102011 in words is "two hundred three billion, one hundred twenty million, one hundred two thousand, eleven".