513265122211 has 4 divisors (see below), whose sum is σ = 513267781312. Its totient is φ = 513262463112.

The previous prime is 513265122163. The next prime is 513265122233. The reversal of 513265122211 is 112221562315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112221562315 = 5 ⋅22444312463.

It is a cyclic number.

It is not a de Polignac number, because 513265122211 - 2²¹ = 513263025059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513265122611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015251 + ... + 1434316.

It is an arithmetic number, because the mean of its divisors is an integer number (128316945328).

Almost surely, 2^513265122211 is an apocalyptic number.

513265122211 is a deficient number, since it is larger than the sum of its proper divisors (2659101).

513265122211 is a wasteful number, since it uses less digits than its factorization.

513265122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659100.

The product of its digits is 7200, while the sum is 31.

Adding to 513265122211 its reverse (112221562315), we get a palindrome (625486684526).

The spelling of 513265122211 in words is "five hundred thirteen billion, two hundred sixty-five million, one hundred twenty-two thousand, two hundred eleven".