213123003 has 8 divisors (see below), whose sum is σ = 285384528. Its totient is φ = 141471744.

The previous prime is 213122971. The next prime is 213123041. The reversal of 213123003 is 300321312.

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

It is not a de Polignac number, because 213123003 - 2⁵ = 213122971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213123103) 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, 151750 + ... + 153147.

It is an arithmetic number, because the mean of its divisors is an integer number (35673066).

Almost surely, 2^213123003 is an apocalyptic number.

213123003 is a deficient number, since it is larger than the sum of its proper divisors (72261525).

213123003 is a wasteful number, since it uses less digits than its factorization.

213123003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305133.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 213123003 is about 14598.7329244698. The cubic root of 213123003 is about 597.3241984383.

Adding to 213123003 its reverse (300321312), we get a palindrome (513444315).

It can be divided in two parts, 21312 and 3003, that multiplied together give a palindrome (63999936).

The spelling of 213123003 in words is "two hundred thirteen million, one hundred twenty-three thousand, three".