20203013312312 has 64 divisors (see below), whose sum is σ = 40182378393600. Its totient is φ = 9502927822080.

The previous prime is 20203013312281. The next prime is 20203013312323. The reversal of 20203013312312 is 21321331030202.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3452633 + ... + 7233719.

It is an arithmetic number, because the mean of its divisors is an integer number (627849662400).

Almost surely, 2^{20203013312312} is an apocalyptic number.

It is an amenable number.

20203013312312 is a deficient number, since it is larger than the sum of its proper divisors (19979365081288).

20203013312312 is a wasteful number, since it uses less digits than its factorization.

20203013312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781596 (or 3781592 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20203013312312 its reverse (21321331030202), we get a palindrome (41524344342514).

The spelling of 20203013312312 in words is "twenty trillion, two hundred three billion, thirteen million, three hundred twelve thousand, three hundred twelve".