213134210340 has 48 divisors (see below), whose sum is σ = 596893957632. Its totient is φ = 56824535296.

The previous prime is 213134210329. The next prime is 213134210353. The reversal of 213134210340 is 43012431312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 213134210340.

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, 43929 + ... + 654368.

It is an arithmetic number, because the mean of its divisors is an integer number (12435290784).

Almost surely, 2^213134210340 is an apocalyptic number.

213134210340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213134210340 is an abundant number, since it is smaller than the sum of its proper divisors (383759747292).

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

213134210340 is a wasteful number, since it uses less digits than its factorization.

213134210340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703396 (or 703394 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 213134210340 its reverse (43012431312), we get a palindrome (256146641652).

The spelling of 213134210340 in words is "two hundred thirteen billion, one hundred thirty-four million, two hundred ten thousand, three hundred forty".