2012031123000 has 64 divisors (see below), whose sum is σ = 6277537113120. Its totient is φ = 536541632000.

The previous prime is 2012031122977. The next prime is 2012031123007. The reversal of 2012031123000 is 3211302102.

It is a super-2 number, since 2×2012031123000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012031123007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335335521 + ... + 335341520.

Almost surely, 2^{2012031123000} is an apocalyptic number.

2012031123000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012031123000 is an abundant number, since it is smaller than the sum of its proper divisors (4265505990120).

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

2012031123000 is a wasteful number, since it uses less digits than its factorization.

2012031123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670677065 (or 670677051 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2012031123000 its reverse (3211302102), we get a palindrome (2015242425102).

The spelling of 2012031123000 in words is "two trillion, twelve billion, thirty-one million, one hundred twenty-three thousand".