2012100123300 has 72 divisors (see below), whose sum is σ = 5830276171776. Its totient is φ = 535767423360.

The previous prime is 2012100123233. The next prime is 2012100123301. The reversal of 2012100123300 is 33210012102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2012100123300.

It is not an unprimeable number, because it can be changed into a prime (2012100123301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4750372 + ... + 5156571.

Almost surely, 2^{2012100123300} is an apocalyptic number.

2012100123300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012100123300 is an abundant number, since it is smaller than the sum of its proper divisors (3818176048476).

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

2012100123300 is a wasteful number, since it uses less digits than its factorization.

2012100123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9907637 (or 9907630 counting only the distinct ones).

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

Adding to 2012100123300 its reverse (33210012102), we get a palindrome (2045310135402).

The spelling of 2012100123300 in words is "two trillion, twelve billion, one hundred million, one hundred twenty-three thousand, three hundred".