20212312331312 has 20 divisors (see below), whose sum is σ = 39161444440920. Its totient is φ = 10106133120768.

The previous prime is 20212312331269. The next prime is 20212312331359. The reversal of 20212312331312 is 21313321321202.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7463639 + ... + 9804617.

It is an arithmetic number, because the mean of its divisors is an integer number (1958072222046).

Almost surely, 2^{20212312331312} is an apocalyptic number.

It is an amenable number.

20212312331312 is a deficient number, since it is larger than the sum of its proper divisors (18949132109608).

20212312331312 is a wasteful number, since it uses less digits than its factorization.

20212312331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880620 (or 2880614 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20212312331312 its reverse (21313321321202), we get a palindrome (41525633652514).

The spelling of 20212312331312 in words is "twenty trillion, two hundred twelve billion, three hundred twelve million, three hundred thirty-one thousand, three hundred twelve".