213120100323 has 16 divisors (see below), whose sum is σ = 340020673440. Its totient is φ = 131150830752.

The previous prime is 213120100289. The next prime is 213120100363. The reversal of 213120100323 is 323001021312.

213120100323 is a `hidden beast` number, since 21 + 312 + 0 + 10 + 0 + 323 = 666.

It is not a de Polignac number, because 213120100323 - 2¹² = 213120096227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213120100296 and 213120100305.

It is not an unprimeable number, because it can be changed into a prime (213120100363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303589536 + ... + 303590237.

It is an arithmetic number, because the mean of its divisors is an integer number (21251292090).

Almost surely, 2^213120100323 is an apocalyptic number.

213120100323 is a deficient number, since it is larger than the sum of its proper divisors (126900573117).

213120100323 is a wasteful number, since it uses less digits than its factorization.

213120100323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607179795 (or 607179789 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213120100323 its reverse (323001021312), we get a palindrome (536121121635).

The spelling of 213120100323 in words is "two hundred thirteen billion, one hundred twenty million, one hundred thousand, three hundred twenty-three".