20123331002112 has 144 divisors (see below), whose sum is σ = 58044582797600. Its totient is φ = 6152355495936.

The previous prime is 20123331002083. The next prime is 20123331002119. The reversal of 20123331002112 is 21120013332102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123331002119) 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, 4851487 + ... + 7986462.

Almost surely, 2^{20123331002112} is an apocalyptic number.

It is an amenable number.

20123331002112 is an abundant number, since it is smaller than the sum of its proper divisors (37921251795488).

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

20123331002112 is a wasteful number, since it uses less digits than its factorization.

20123331002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838138 (or 12838124 counting only the distinct ones).

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

Adding to 20123331002112 its reverse (21120013332102), we get a palindrome (41243344334214).

The spelling of 20123331002112 in words is "twenty trillion, one hundred twenty-three billion, three hundred thirty-one million, two thousand, one hundred twelve".