213321013134 has 32 divisors (see below), whose sum is σ = 445214651904. Its totient is φ = 68011885920.

The previous prime is 213321013123. The next prime is 213321013141. The reversal of 213321013134 is 431310123312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4557072 + ... + 4603644.

It is an arithmetic number, because the mean of its divisors is an integer number (13912957872).

Almost surely, 2^213321013134 is an apocalyptic number.

213321013134 is an abundant number, since it is smaller than the sum of its proper divisors (231893638770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213321013134 is a wasteful number, since it uses less digits than its factorization.

213321013134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79792.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 213321013134 its reverse (431310123312), we get a palindrome (644631136446).

The spelling of 213321013134 in words is "two hundred thirteen billion, three hundred twenty-one million, thirteen thousand, one hundred thirty-four".