12300021123 has 16 divisors (see below), whose sum is σ = 17713995936. Its totient is φ = 7546775040.

The previous prime is 12300021109. The next prime is 12300021131. The reversal of 12300021123 is 32112000321.

It is not a de Polignac number, because 12300021123 - 2⁵ = 12300021091 is a prime.

It is a super-2 number, since 2×12300021123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12300021103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454788 + ... + 481073.

It is an arithmetic number, because the mean of its divisors is an integer number (1107124746).

Almost surely, 2^12300021123 is an apocalyptic number.

12300021123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12300021123 is a deficient number, since it is larger than the sum of its proper divisors (5413974813).

12300021123 is a wasteful number, since it uses less digits than its factorization.

12300021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936214.

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

Adding to 12300021123 its reverse (32112000321), we get a palindrome (44412021444).

The spelling of 12300021123 in words is "twelve billion, three hundred million, twenty-one thousand, one hundred twenty-three".