211751552029 has 2 divisors, whose sum is σ = 211751552030. Its totient is φ = 211751552028.

The previous prime is 211751551997. The next prime is 211751552113. The reversal of 211751552029 is 920255157112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146994026404 + 64757525625 = 383398^2 + 254475^2 .

It is a cyclic number.

It is not a de Polignac number, because 211751552029 - 2⁵ = 211751551997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211751551982 and 211751552000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211751552329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105875776014 + 105875776015.

It is an arithmetic number, because the mean of its divisors is an integer number (105875776015).

Almost surely, 2^211751552029 is an apocalyptic number.

It is an amenable number.

211751552029 is a deficient number, since it is larger than the sum of its proper divisors (1).

211751552029 is an equidigital number, since it uses as much as digits as its factorization.

211751552029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 211751552029 in words is "two hundred eleven billion, seven hundred fifty-one million, five hundred fifty-two thousand, twenty-nine".