503213000510531 has 4 divisors (see below), whose sum is σ = 509582785327200. Its totient is φ = 496843215693864.

The previous prime is 503213000510501. The next prime is 503213000510551. The reversal of 503213000510531 is 135015000312305.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 503213000510531 - 2²² = 503212996316227 is a prime.

It is a super-2 number, since 2×503213000510531² (a number of 30 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 = 503213000510494 and 503213000510503.

It is not an unprimeable number, because it can be changed into a prime (503213000510501) 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, 3184892408216 + ... + 3184892408373.

It is an arithmetic number, because the mean of its divisors is an integer number (127395696331800).

Almost surely, 2^{503213000510531} is an apocalyptic number.

503213000510531 is a deficient number, since it is larger than the sum of its proper divisors (6369784816669).

503213000510531 is an equidigital number, since it uses as much as digits as its factorization.

503213000510531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6369784816668.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 503213000510531 its reverse (135015000312305), we get a palindrome (638228000822836).

The spelling of 503213000510531 in words is "five hundred three trillion, two hundred thirteen billion, five hundred ten thousand, five hundred thirty-one".