12123333100 has 36 divisors (see below), whose sum is σ = 26315300088. Its totient is φ = 4847920000.

The previous prime is 12123333083. The next prime is 12123333107. The reversal of 12123333100 is 133332121.

It is a super-2 number, since 2×12123333100² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12123333107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369360 + ... + 400840.

It is an arithmetic number, because the mean of its divisors is an integer number (730980558).

Almost surely, 2^12123333100 is an apocalyptic number.

12123333100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12123333100 is an abundant number, since it is smaller than the sum of its proper divisors (14191966988).

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

12123333100 is a wasteful number, since it uses less digits than its factorization.

12123333100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35346 (or 35339 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12123333100 its reverse (133332121), we get a palindrome (12256665221).

The spelling of 12123333100 in words is "twelve billion, one hundred twenty-three million, three hundred thirty-three thousand, one hundred".