211240344104 has 8 divisors (see below), whose sum is σ = 396075645210. Its totient is φ = 105620172048.

The previous prime is 211240344103. The next prime is 211240344109. The reversal of 211240344104 is 401443042112.

It can be written as a sum of positive squares in only one way, i.e., 126378828004 + 84861516100 = 355498^2 + 291310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (211240344103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13202521499 + ... + 13202521514.

Almost surely, 2^211240344104 is an apocalyptic number.

It is an amenable number.

211240344104 is a deficient number, since it is larger than the sum of its proper divisors (184835301106).

211240344104 is a wasteful number, since it uses less digits than its factorization.

211240344104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26405043019 (or 26405043015 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 211240344104 its reverse (401443042112), we get a palindrome (612683386216).

The spelling of 211240344104 in words is "two hundred eleven billion, two hundred forty million, three hundred forty-four thousand, one hundred four".