531003223445413 has 4 divisors (see below), whose sum is σ = 531003283383628. Its totient is φ = 531003163507200.

The previous prime is 531003223445341. The next prime is 531003223445483. The reversal of 531003223445413 is 314544322300135.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 284483612356164 + 246519611089249 = 16866642^2 + 15700943^2 .

It is a cyclic number.

It is not a de Polignac number, because 531003223445413 - 2²¹ = 531003221348261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531003223445483) 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, 13756956 + ... + 35373157.

It is an arithmetic number, because the mean of its divisors is an integer number (132750820845907).

Almost surely, 2^{531003223445413} is an apocalyptic number.

It is an amenable number.

531003223445413 is a deficient number, since it is larger than the sum of its proper divisors (59938215).

531003223445413 is a wasteful number, since it uses less digits than its factorization.

531003223445413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59938214.

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 531003223445413 its reverse (314544322300135), we get a palindrome (845547545745548).

The spelling of 531003223445413 in words is "five hundred thirty-one trillion, three billion, two hundred twenty-three million, four hundred forty-five thousand, four hundred thirteen".