211304034513 has 48 divisors (see below), whose sum is σ = 379669320576. Its totient is φ = 111258385920.

The previous prime is 211304034509. The next prime is 211304034523. The reversal of 211304034513 is 315430403112.

It is a happy number.

211304034513 is a `hidden beast` number, since 2 + 1 + 1 + 304 + 0 + 345 + 13 = 666.

It is not a de Polignac number, because 211304034513 - 2² = 211304034509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211304034523) 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, 4807045 + ... + 4850802.

It is an arithmetic number, because the mean of its divisors is an integer number (7909777512).

Almost surely, 2^211304034513 is an apocalyptic number.

It is an amenable number.

211304034513 is a deficient number, since it is larger than the sum of its proper divisors (168365286063).

211304034513 is a wasteful number, since it uses less digits than its factorization.

211304034513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657894 (or 9657891 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 211304034513 its reverse (315430403112), we get a palindrome (526734437625).

The spelling of 211304034513 in words is "two hundred eleven billion, three hundred four million, thirty-four thousand, five hundred thirteen".