12123350451 has 48 divisors (see below), whose sum is σ = 18250831872. Its totient is φ = 7746480000.

The previous prime is 12123350423. The next prime is 12123350453. The reversal of 12123350451 is 15405332121.

12123350451 is a `hidden beast` number, since 121 + 2 + 33 + 504 + 5 + 1 = 666.

It is not a de Polignac number, because 12123350451 - 2⁵ = 12123350419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12123350453) 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 47 ways as a sum of consecutive naturals, for example, 16316386 + ... + 16317128.

It is an arithmetic number, because the mean of its divisors is an integer number (380225664).

Almost surely, 2^12123350451 is an apocalyptic number.

12123350451 is a deficient number, since it is larger than the sum of its proper divisors (6127481421).

12123350451 is a wasteful number, since it uses less digits than its factorization.

12123350451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1261 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 12123350451 its reverse (15405332121), we get a palindrome (27528682572).

The spelling of 12123350451 in words is "twelve billion, one hundred twenty-three million, three hundred fifty thousand, four hundred fifty-one".