211023402021011 has 2 divisors, whose sum is σ = 211023402021012. Its totient is φ = 211023402021010.

The previous prime is 211023402020941. The next prime is 211023402021121. The reversal of 211023402021011 is 110120204320112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211023402021011 - 2³⁰ = 211022328279187 is a prime.

It is not a weakly prime, because it can be changed into another prime (211023402021811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105511701010505 + 105511701010506.

It is an arithmetic number, because the mean of its divisors is an integer number (105511701010506).

Almost surely, 2^{211023402021011} is an apocalyptic number.

211023402021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211023402021011 is an equidigital number, since it uses as much as digits as its factorization.

211023402021011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 211023402021011 its reverse (110120204320112), we get a palindrome (321143606341123).

The spelling of 211023402021011 in words is "two hundred eleven trillion, twenty-three billion, four hundred two million, twenty-one thousand, eleven".