213131263562 has 8 divisors (see below), whose sum is σ = 365367880416. Its totient is φ = 91341970092.

The previous prime is 213131263561. The next prime is 213131263573. The reversal of 213131263562 is 265362131312.

It is a happy number.

213131263562 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (213131263561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7611830828 + ... + 7611830855.

It is an arithmetic number, because the mean of its divisors is an integer number (45670985052).

Almost surely, 2^213131263562 is an apocalyptic number.

213131263562 is a deficient number, since it is larger than the sum of its proper divisors (152236616854).

213131263562 is a wasteful number, since it uses less digits than its factorization.

213131263562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15223661692.

The product of its digits is 38880, while the sum is 35.

Adding to 213131263562 its reverse (265362131312), we get a palindrome (478493394874).

The spelling of 213131263562 in words is "two hundred thirteen billion, one hundred thirty-one million, two hundred sixty-three thousand, five hundred sixty-two".