212331221310303 has 16 divisors (see below), whose sum is σ = 314582649060960. Its totient is φ = 141546103003008.

The previous prime is 212331221310251. The next prime is 212331221310343. The reversal of 212331221310303 is 303013122133212.

212331221310303 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 312 + 2 + 1 + 310 + 30 + 3 = 666.

It is not a de Polignac number, because 212331221310303 - 2⁹ = 212331221309791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212331221310343) 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, 222975450 + ... + 223925687.

It is an arithmetic number, because the mean of its divisors is an integer number (19661415566310).

Almost surely, 2^{212331221310303} is an apocalyptic number.

212331221310303 is a deficient number, since it is larger than the sum of its proper divisors (102251427750657).

212331221310303 is a wasteful number, since it uses less digits than its factorization.

212331221310303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446918743 (or 446918737 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 212331221310303 its reverse (303013122133212), we get a palindrome (515344343443515).

The spelling of 212331221310303 in words is "two hundred twelve trillion, three hundred thirty-one billion, two hundred twenty-one million, three hundred ten thousand, three hundred three".