212120133323 has 16 divisors (see below), whose sum is σ = 249909058560. Its totient is φ = 176287150656.

The previous prime is 212120133307. The next prime is 212120133343. The reversal of 212120133323 is 323331021212.

It is a cyclic number.

It is not a de Polignac number, because 212120133323 - 2⁴ = 212120133307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212120133343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3487715 + ... + 3548012.

It is an arithmetic number, because the mean of its divisors is an integer number (15619316160).

Almost surely, 2^212120133323 is an apocalyptic number.

212120133323 is a deficient number, since it is larger than the sum of its proper divisors (37788925237).

212120133323 is an equidigital number, since it uses as much as digits as its factorization.

212120133323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035866.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 212120133323 its reverse (323331021212), we get a palindrome (535451154535).

The spelling of 212120133323 in words is "two hundred twelve billion, one hundred twenty million, one hundred thirty-three thousand, three hundred twenty-three".