213203144134 has 16 divisors (see below), whose sum is σ = 320566731408. Its totient is φ = 106347814432.

The previous prime is 213203144117. The next prime is 213203144177. The reversal of 213203144134 is 431441302312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691964 + ... + 1813600.

It is an arithmetic number, because the mean of its divisors is an integer number (20035420713).

Almost surely, 2^213203144134 is an apocalyptic number.

213203144134 is a deficient number, since it is larger than the sum of its proper divisors (107363587274).

213203144134 is a wasteful number, since it uses less digits than its factorization.

213203144134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123719.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 213203144134 its reverse (431441302312), we get a palindrome (644644446446).

The spelling of 213203144134 in words is "two hundred thirteen billion, two hundred three million, one hundred forty-four thousand, one hundred thirty-four".