513311032311 has 16 divisors (see below), whose sum is σ = 853296261888. Its totient is φ = 266655081600.

The previous prime is 513311032303. The next prime is 513311032363. The reversal of 513311032311 is 113230113315.

It is a happy number.

It is not a de Polignac number, because 513311032311 - 2³ = 513311032303 is a prime.

It is a super-6 number, since 6×513311032311⁶ (a number of 72 digits) contains 666666 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513311032211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1111062610 + ... + 1111063071.

It is an arithmetic number, because the mean of its divisors is an integer number (53331016368).

Almost surely, 2^513311032311 is an apocalyptic number.

513311032311 is a deficient number, since it is larger than the sum of its proper divisors (339985229577).

513311032311 is a wasteful number, since it uses less digits than its factorization.

513311032311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222125702.

The product of its (nonzero) digits is 810, while the sum is 24.

Adding to 513311032311 its reverse (113230113315), we get a palindrome (626541145626).

The spelling of 513311032311 in words is "five hundred thirteen billion, three hundred eleven million, thirty-two thousand, three hundred eleven".