212023312306 has 32 divisors (see below), whose sum is σ = 343280665728. Its totient is φ = 97633831680.

The previous prime is 212023312273. The next prime is 212023312321. The reversal of 212023312306 is 603213320212.

It is a super-2 number, since 2×212023312306² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 54883731 + ... + 54887593.

It is an arithmetic number, because the mean of its divisors is an integer number (10727520804).

Almost surely, 2^212023312306 is an apocalyptic number.

212023312306 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

212023312306 is a deficient number, since it is larger than the sum of its proper divisors (131257353422).

212023312306 is a wasteful number, since it uses less digits than its factorization.

212023312306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8146.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 212023312306 its reverse (603213320212), we get a palindrome (815236632518).

The spelling of 212023312306 in words is "two hundred twelve billion, twenty-three million, three hundred twelve thousand, three hundred six".