503206603213 has 4 divisors (see below), whose sum is σ = 503466929308. Its totient is φ = 502946277120.

The previous prime is 503206603187. The next prime is 503206603243. The reversal of 503206603213 is 312306602305.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 228979476324 + 274227126889 = 478518^2 + 523667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503206603213 is a prime.

It is a super-4 number, since 4×503206603213⁴ (a number of 48 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503206603243) 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, 130160148 + ... + 130164013.

It is an arithmetic number, because the mean of its divisors is an integer number (125866732327).

Almost surely, 2^503206603213 is an apocalyptic number.

It is an amenable number.

503206603213 is a deficient number, since it is larger than the sum of its proper divisors (260326095).

503206603213 is a wasteful number, since it uses less digits than its factorization.

503206603213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260326094.

The product of its (nonzero) digits is 19440, while the sum is 31.

The spelling of 503206603213 in words is "five hundred three billion, two hundred six million, six hundred three thousand, two hundred thirteen".