213034123 has 8 divisors (see below), whose sum is σ = 231662592. Its totient is φ = 195083136.

The previous prime is 213034121. The next prime is 213034163. The reversal of 213034123 is 321430312.

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

It is a cyclic number.

It is not a de Polignac number, because 213034123 - 2¹ = 213034121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213034123.

It is not an unprimeable number, because it can be changed into a prime (213034121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168715 + ... + 169972.

It is an arithmetic number, because the mean of its divisors is an integer number (28957824).

Almost surely, 2^213034123 is an apocalyptic number.

213034123 is a deficient number, since it is larger than the sum of its proper divisors (18628469).

213034123 is a wasteful number, since it uses less digits than its factorization.

213034123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338741.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213034123 is about 14595.6885072271. The cubic root of 213034123 is about 597.2411516282.

Adding to 213034123 its reverse (321430312), we get a palindrome (534464435).

The spelling of 213034123 in words is "two hundred thirteen million, thirty-four thousand, one hundred twenty-three".