211440444043 has 32 divisors (see below), whose sum is σ = 229866024960. Its totient is φ = 193765977600.

The previous prime is 211440444031. The next prime is 211440444053. The reversal of 211440444043 is 340444044112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211440444043 is a prime.

It is a super-2 number, since 2×211440444043² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211440443996 and 211440444014.

It is not an unprimeable number, because it can be changed into a prime (211440444013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35671146 + ... + 35677072.

It is an arithmetic number, because the mean of its divisors is an integer number (7183313280).

Almost surely, 2^211440444043 is an apocalyptic number.

211440444043 is a deficient number, since it is larger than the sum of its proper divisors (18425580917).

211440444043 is a wasteful number, since it uses less digits than its factorization.

211440444043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 211440444043 its reverse (340444044112), we get a palindrome (551884488155).

The spelling of 211440444043 in words is "two hundred eleven billion, four hundred forty million, four hundred forty-four thousand, forty-three".