12123296554 has 4 divisors (see below), whose sum is σ = 18184944834. Its totient is φ = 6061648276.

The previous prime is 12123296551. The next prime is 12123296567. The reversal of 12123296554 is 45569232121.

12123296554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11615019529 + 508277025 = 107773^2 + 22545^2 .

It is not an unprimeable number, because it can be changed into a prime (12123296551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030824137 + ... + 3030824140.

Almost surely, 2^12123296554 is an apocalyptic number.

12123296554 is a deficient number, since it is larger than the sum of its proper divisors (6061648280).

12123296554 is an equidigital number, since it uses as much as digits as its factorization.

12123296554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061648279.

The product of its digits is 129600, while the sum is 40.

The spelling of 12123296554 in words is "twelve billion, one hundred twenty-three million, two hundred ninety-six thousand, five hundred fifty-four".