4012123211300 has 18 divisors (see below), whose sum is σ = 8706307368738. Its totient is φ = 1604849284480.

The previous prime is 4012123211287. The next prime is 4012123211303. The reversal of 4012123211300 is 31123212104.

It can be written as a sum of positive squares in 3 ways, for example, as 52405282084 + 3959717929216 = 228922^2 + 1989904^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (4012123211303) 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 5 ways as a sum of consecutive naturals, for example, 20060615957 + ... + 20060616156.

Almost surely, 2^{4012123211300} is an apocalyptic number.

It is an amenable number.

4012123211300 is an abundant number, since it is smaller than the sum of its proper divisors (4694184157438).

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

4012123211300 is a wasteful number, since it uses less digits than its factorization.

4012123211300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40121232127 (or 40121232120 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 4012123211300 its reverse (31123212104), we get a palindrome (4043246423404).

The spelling of 4012123211300 in words is "four trillion, twelve billion, one hundred twenty-three million, two hundred eleven thousand, three hundred".