312020321421303 has 128 divisors (see below), whose sum is σ = 539164775761920. Its totient is φ = 176426933760000.

The previous prime is 312020321421241. The next prime is 312020321421337. The reversal of 312020321421303 is 303124123020213.

312020321421303 is a `hidden beast` number, since 3 + 1 + 2 + 0 + 203 + 2 + 1 + 421 + 30 + 3 = 666.

It is not a de Polignac number, because 312020321421303 - 2⁴² = 307622274910199 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 (312020321425303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1176445675 + ... + 1176710867.

It is an arithmetic number, because the mean of its divisors is an integer number (4212224810640).

Almost surely, 2^{312020321421303} is an apocalyptic number.

312020321421303 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

312020321421303 is a deficient number, since it is larger than the sum of its proper divisors (227144454340617).

312020321421303 is a wasteful number, since it uses less digits than its factorization.

312020321421303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269478 (or 269472 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 312020321421303 its reverse (303124123020213), we get a palindrome (615144444441516).

The spelling of 312020321421303 in words is "three hundred twelve trillion, twenty billion, three hundred twenty-one million, four hundred twenty-one thousand, three hundred three".