211243034 has 16 divisors (see below), whose sum is σ = 323222400. Its totient is φ = 103519920.

The previous prime is 211243031. The next prime is 211243049. The reversal of 211243034 is 430342112.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211242997 and 211243015.

It is not an unprimeable number, because it can be changed into a prime (211243031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20267 + ... + 28865.

It is an arithmetic number, because the mean of its divisors is an integer number (20201400).

Almost surely, 2^211243034 is an apocalyptic number.

211243034 is a deficient number, since it is larger than the sum of its proper divisors (111979366).

211243034 is a wasteful number, since it uses less digits than its factorization.

211243034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8845.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 211243034 is about 14534.2022140880. The cubic root of 211243034 is about 595.5626661986.

Adding to 211243034 its reverse (430342112), we get a palindrome (641585146).

The spelling of 211243034 in words is "two hundred eleven million, two hundred forty-three thousand, thirty-four".