513242023 has 12 divisors (see below), whose sum is σ = 610923720. Its totient is φ = 429689232.

The previous prime is 513242017. The next prime is 513242027. The reversal of 513242023 is 320242315.

It is not a de Polignac number, because 513242023 - 2⁹ = 513241511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513241985 and 513242003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513242027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119688 + ... + 123901.

It is an arithmetic number, because the mean of its divisors is an integer number (50910310).

Almost surely, 2^513242023 is an apocalyptic number.

513242023 is a deficient number, since it is larger than the sum of its proper divisors (97681697).

513242023 is a wasteful number, since it uses less digits than its factorization.

513242023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243646 (or 243639 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 513242023 is about 22654.8454640503. The cubic root of 513242023 is about 800.6463646045.

Adding to 513242023 its reverse (320242315), we get a palindrome (833484338).

The spelling of 513242023 in words is "five hundred thirteen million, two hundred forty-two thousand, twenty-three".