513211300421 has 8 divisors (see below), whose sum is σ = 514879445184. Its totient is φ = 511543337760.

The previous prime is 513211300411. The next prime is 513211300487. The reversal of 513211300421 is 124003112315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513211300421 - 2¹⁰ = 513211299397 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 (513211300411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7762976 + ... + 7828806.

It is an arithmetic number, because the mean of its divisors is an integer number (64359930648).

Almost surely, 2^513211300421 is an apocalyptic number.

It is an amenable number.

513211300421 is a deficient number, since it is larger than the sum of its proper divisors (1668144763).

513211300421 is a wasteful number, since it uses less digits than its factorization.

513211300421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91051.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 513211300421 its reverse (124003112315), we get a palindrome (637214412736).

The spelling of 513211300421 in words is "five hundred thirteen billion, two hundred eleven million, three hundred thousand, four hundred twenty-one".