20200312311312 has 80 divisors (see below), whose sum is σ = 60649848161280. Its totient is φ = 5673695462016.

The previous prime is 20200312311299. The next prime is 20200312311317. The reversal of 20200312311312 is 21311321300202.

It is a super-2 number, since 2×20200312311312² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20200312311317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509471508 + ... + 509511155.

It is an arithmetic number, because the mean of its divisors is an integer number (758123102016).

Almost surely, 2^{20200312311312} is an apocalyptic number.

It is an amenable number.

20200312311312 is an abundant number, since it is smaller than the sum of its proper divisors (40449535849968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20200312311312 is a wasteful number, since it uses less digits than its factorization.

20200312311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018982740 (or 1018982734 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20200312311312 its reverse (21311321300202), we get a palindrome (41511633611514).

The spelling of 20200312311312 in words is "twenty trillion, two hundred billion, three hundred twelve million, three hundred eleven thousand, three hundred twelve".