213153123 has 8 divisors (see below), whose sum is σ = 300922128. Its totient is φ = 133743104.

The previous prime is 213153013. The next prime is 213153133. The reversal of 213153123 is 321351312.

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 213153123 - 2¹⁴ = 213136739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213153123.

It is not an unprimeable number, because it can be changed into a prime (213153133) 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, 2089686 + ... + 2089787.

It is an arithmetic number, because the mean of its divisors is an integer number (37615266).

Almost surely, 2^213153123 is an apocalyptic number.

213153123 is a deficient number, since it is larger than the sum of its proper divisors (87769005).

213153123 is a wasteful number, since it uses less digits than its factorization.

213153123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179493.

The product of its digits is 540, while the sum is 21.

The square root of 213153123 is about 14599.7644844018. The cubic root of 213153123 is about 597.3523364260.

The spelling of 213153123 in words is "two hundred thirteen million, one hundred fifty-three thousand, one hundred twenty-three".