20123012002112 has 56 divisors (see below), whose sum is σ = 42052316240640. Its totient is φ = 9527632819200.

The previous prime is 20123012002109. The next prime is 20123012002117. The reversal of 20123012002112 is 21120021032102.

It is a super-2 number, since 2×20123012002112² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123012002117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065389 + ... + 6432812.

Almost surely, 2^{20123012002112} is an apocalyptic number.

It is an amenable number.

20123012002112 is an abundant number, since it is smaller than the sum of its proper divisors (21929304238528).

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

20123012002112 is a wasteful number, since it uses less digits than its factorization.

20123012002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500439 (or 7500429 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20123012002112 its reverse (21120021032102), we get a palindrome (41243033034214).

The spelling of 20123012002112 in words is "twenty trillion, one hundred twenty-three billion, twelve million, two thousand, one hundred twelve".