212120103323 has 4 divisors (see below), whose sum is σ = 215597482128. Its totient is φ = 208642724520.

The previous prime is 212120103317. The next prime is 212120103359. The reversal of 212120103323 is 323301021212.

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 212120103323 - 2⁸ = 212120103067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212120103295 and 212120103304.

It is not an unprimeable number, because it can be changed into a prime (212120103313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1738689311 + ... + 1738689432.

It is an arithmetic number, because the mean of its divisors is an integer number (53899370532).

Almost surely, 2^212120103323 is an apocalyptic number.

212120103323 is a deficient number, since it is larger than the sum of its proper divisors (3477378805).

212120103323 is an equidigital number, since it uses as much as digits as its factorization.

212120103323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477378804.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212120103323 its reverse (323301021212), we get a palindrome (535421124535).

The spelling of 212120103323 in words is "two hundred twelve billion, one hundred twenty million, one hundred three thousand, three hundred twenty-three".