12113123012300 has 72 divisors (see below), whose sum is σ = 26734244367600. Its totient is φ = 4762547077120.

The previous prime is 12113123012269. The next prime is 12113123012321. The reversal of 12113123012300 is 321032131121.

It is a happy number.

It is a super-2 number, since 2×12113123012300² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50106116 + ... + 50347284.

It is an arithmetic number, because the mean of its divisors is an integer number (371308949550).

Almost surely, 2^{12113123012300} is an apocalyptic number.

12113123012300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12113123012300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13367122183800).

12113123012300 is an abundant number, since it is smaller than the sum of its proper divisors (14621121355300).

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

12113123012300 is a wasteful number, since it uses less digits than its factorization.

12113123012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249755 (or 249748 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12113123012300 its reverse (321032131121), we get a palindrome (12434155143421).

The spelling of 12113123012300 in words is "twelve trillion, one hundred thirteen billion, one hundred twenty-three million, twelve thousand, three hundred".