211305240050 has 96 divisors (see below), whose sum is σ = 420242245632. Its totient is φ = 78856303680.

The previous prime is 211305240001. The next prime is 211305240059. The reversal of 211305240050 is 50042503112.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211305239998 and 211305240025.

It is not an unprimeable number, because it can be changed into a prime (211305240059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40892567 + ... + 40897733.

It is an arithmetic number, because the mean of its divisors is an integer number (4377523392).

Almost surely, 2^211305240050 is an apocalyptic number.

211305240050 is a deficient number, since it is larger than the sum of its proper divisors (208937005582).

211305240050 is a wasteful number, since it uses less digits than its factorization.

211305240050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072 (or 6067 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 211305240050 its reverse (50042503112), we get a palindrome (261347743162).

The spelling of 211305240050 in words is "two hundred eleven billion, three hundred five million, two hundred forty thousand, fifty".