513221323135 has 4 divisors (see below), whose sum is σ = 615865587768. Its totient is φ = 410577058504.

The previous prime is 513221323117. The next prime is 513221323177. The reversal of 513221323135 is 531323122315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531323122315 = 5 ⋅106264624463.

It is a cyclic number.

It is not a de Polignac number, because 513221323135 - 2¹³ = 513221314943 is a prime.

It is a super-2 number, since 2×513221323135² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513221323097 and 513221323106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51322132309 + ... + 51322132318.

It is an arithmetic number, because the mean of its divisors is an integer number (153966396942).

Almost surely, 2^513221323135 is an apocalyptic number.

513221323135 is a deficient number, since it is larger than the sum of its proper divisors (102644264633).

513221323135 is a wasteful number, since it uses less digits than its factorization.

513221323135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102644264632.

The product of its digits is 16200, while the sum is 31.

The spelling of 513221323135 in words is "five hundred thirteen billion, two hundred twenty-one million, three hundred twenty-three thousand, one hundred thirty-five".