211555450143 has 6 divisors (see below), whose sum is σ = 305580094664. Its totient is φ = 141036966756.

The previous prime is 211555450133. The next prime is 211555450159. The reversal of 211555450143 is 341054555112.

211555450143 is a `hidden beast` number, since 2 + 1 + 15 + 55 + 450 + 143 = 666.

It is not a de Polignac number, because 211555450143 - 2²⁴ = 211538672927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211555450098 and 211555450107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211555450133) 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 in 5 ways as a sum of consecutive naturals, for example, 11753080555 + ... + 11753080572.

Almost surely, 2^211555450143 is an apocalyptic number.

211555450143 is a deficient number, since it is larger than the sum of its proper divisors (94024644521).

211555450143 is a wasteful number, since it uses less digits than its factorization.

211555450143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23506161133 (or 23506161130 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 211555450143 in words is "two hundred eleven billion, five hundred fifty-five million, four hundred fifty thousand, one hundred forty-three".