503657641213 has 4 divisors (see below), whose sum is σ = 508364722080. Its totient is φ = 498950560348.

The previous prime is 503657641183. The next prime is 503657641237. The reversal of 503657641213 is 312146756305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312146756305 = 5 ⋅62429351261.

It is a cyclic number.

It is not a de Polignac number, because 503657641213 - 2²¹ = 503655544061 is a prime.

It is a super-2 number, since 2×503657641213² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503657641213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503657641313) 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, 2353540273 + ... + 2353540486.

It is an arithmetic number, because the mean of its divisors is an integer number (127091180520).

Almost surely, 2^503657641213 is an apocalyptic number.

It is an amenable number.

503657641213 is a deficient number, since it is larger than the sum of its proper divisors (4707080867).

503657641213 is a wasteful number, since it uses less digits than its factorization.

503657641213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707080866.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 503657641213 in words is "five hundred three billion, six hundred fifty-seven million, six hundred forty-one thousand, two hundred thirteen".