12120623545 has 8 divisors (see below), whose sum is σ = 15310261440. Its totient is φ = 9186156720.

The previous prime is 12120623531. The next prime is 12120623549. The reversal of 12120623545 is 54532602121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12120623545 - 2²⁹ = 11583752633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120623549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63792661 + ... + 63792850.

It is an arithmetic number, because the mean of its divisors is an integer number (1913782680).

Almost surely, 2^12120623545 is an apocalyptic number.

It is an amenable number.

12120623545 is a deficient number, since it is larger than the sum of its proper divisors (3189637895).

12120623545 is a wasteful number, since it uses less digits than its factorization.

12120623545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127585535.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 12120623545 in words is "twelve billion, one hundred twenty million, six hundred twenty-three thousand, five hundred forty-five".