213210112134 has 16 divisors (see below), whose sum is σ = 451503767088. Its totient is φ = 66889446912.

The previous prime is 213210112133. The next prime is 213210112139. The reversal of 213210112134 is 431211012312.

It is a self number, because there is not a number n which added to its sum of digits gives 213210112134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213210112133) 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, 1045147507 + ... + 1045147710.

It is an arithmetic number, because the mean of its divisors is an integer number (28218985443).

Almost surely, 2^213210112134 is an apocalyptic number.

213210112134 is an abundant number, since it is smaller than the sum of its proper divisors (238293654954).

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

213210112134 is a wasteful number, since it uses less digits than its factorization.

213210112134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090295239.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 213210112134 its reverse (431211012312), we get a palindrome (644421124446).

The spelling of 213210112134 in words is "two hundred thirteen billion, two hundred ten million, one hundred twelve thousand, one hundred thirty-four".