213033220123 has 4 divisors (see below), whose sum is σ = 213034444840. Its totient is φ = 213031995408.

The previous prime is 213033220121. The next prime is 213033220303. The reversal of 213033220123 is 321022330312.

213033220123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213033220123 - 2¹ = 213033220121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213033220094 and 213033220103.

It is not an unprimeable number, because it can be changed into a prime (213033220121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297465 + ... + 717322.

It is an arithmetic number, because the mean of its divisors is an integer number (53258611210).

Almost surely, 2^213033220123 is an apocalyptic number.

213033220123 is a deficient number, since it is larger than the sum of its proper divisors (1224717).

213033220123 is a wasteful number, since it uses less digits than its factorization.

213033220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224716.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213033220123 its reverse (321022330312), we get a palindrome (534055550435).

The spelling of 213033220123 in words is "two hundred thirteen billion, thirty-three million, two hundred twenty thousand, one hundred twenty-three".