513322031151231 has 32 divisors (see below), whose sum is σ = 685893650061312. Its totient is φ = 341483236754400.

The previous prime is 513322031151169. The next prime is 513322031151233. The reversal of 513322031151231 is 132151130223315.

It is a happy number.

It is not a de Polignac number, because 513322031151231 - 2³⁸ = 513047153244287 is a prime.

It is a super-2 number, since 2×513322031151231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513322031151192 and 513322031151201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513322031151233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28736599206 + ... + 28736617068.

It is an arithmetic number, because the mean of its divisors is an integer number (21434176564416).

Almost surely, 2^{513322031151231} is an apocalyptic number.

513322031151231 is a deficient number, since it is larger than the sum of its proper divisors (172571618910081).

513322031151231 is a wasteful number, since it uses less digits than its factorization.

513322031151231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26363.

The product of its (nonzero) digits is 16200, while the sum is 33.

Adding to 513322031151231 its reverse (132151130223315), we get a palindrome (645473161374546).

The spelling of 513322031151231 in words is "five hundred thirteen trillion, three hundred twenty-two billion, thirty-one million, one hundred fifty-one thousand, two hundred thirty-one".