213123131303 has 8 divisors (see below), whose sum is σ = 213251859600. Its totient is φ = 212994448128.

The previous prime is 213123131281. The next prime is 213123131327. The reversal of 213123131303 is 303131321312.

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 213123131303 - 2³² = 208828164007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213123133303) 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, 14325953 + ... + 14340821.

It is an arithmetic number, because the mean of its divisors is an integer number (26656482450).

Almost surely, 2^213123131303 is an apocalyptic number.

213123131303 is a deficient number, since it is larger than the sum of its proper divisors (128728297).

213123131303 is a wasteful number, since it uses less digits than its factorization.

213123131303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22561.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 213123131303 its reverse (303131321312), we get a palindrome (516254452615).

The spelling of 213123131303 in words is "two hundred thirteen billion, one hundred twenty-three million, one hundred thirty-one thousand, three hundred three".