5213121425543 has 4 divisors (see below), whose sum is σ = 5230102277400. Its totient is φ = 5196140573688.

The previous prime is 5213121425537. The next prime is 5213121425581. The reversal of 5213121425543 is 3455241213125.

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 5213121425543 - 2⁸ = 5213121425287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5213121425497 and 5213121425506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213121425503) 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, 8490425468 + ... + 8490426081.

It is an arithmetic number, because the mean of its divisors is an integer number (1307525569350).

Almost surely, 2^{5213121425543} is an apocalyptic number.

5213121425543 is a deficient number, since it is larger than the sum of its proper divisors (16980851857).

5213121425543 is a wasteful number, since it uses less digits than its factorization.

5213121425543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16980851856.

The product of its digits is 144000, while the sum is 38.

Adding to 5213121425543 its reverse (3455241213125), we get a palindrome (8668362638668).

The spelling of 5213121425543 in words is "five trillion, two hundred thirteen billion, one hundred twenty-one million, four hundred twenty-five thousand, five hundred forty-three".