12125520154154 has 16 divisors (see below), whose sum is σ = 20525958882720. Its totient is φ = 5321544894960.

The previous prime is 12125520154133. The next prime is 12125520154159. The reversal of 12125520154154 is 45145102552121.

It is not an unprimeable number, because it can be changed into a prime (12125520154159) 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 7 ways as a sum of consecutive naturals, for example, 9502758104 + ... + 9502759379.

It is an arithmetic number, because the mean of its divisors is an integer number (1282872430170).

Almost surely, 2^{12125520154154} is an apocalyptic number.

12125520154154 is a deficient number, since it is larger than the sum of its proper divisors (8400438728566).

12125520154154 is a wasteful number, since it uses less digits than its factorization.

12125520154154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19005517525.

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 12125520154154 in words is "twelve trillion, one hundred twenty-five billion, five hundred twenty million, one hundred fifty-four thousand, one hundred fifty-four".