12125531026 has 16 divisors (see below), whose sum is σ = 20823042240. Its totient is φ = 5187551760.

The previous prime is 12125531009. The next prime is 12125531071. The reversal of 12125531026 is 62013552121.

It is a super-2 number, since 2×12125531026² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12125530985 and 12125531003.

It is an unprimeable number.

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, 750421 + ... + 766408.

It is an arithmetic number, because the mean of its divisors is an integer number (1301440140).

Almost surely, 2^12125531026 is an apocalyptic number.

12125531026 is a deficient number, since it is larger than the sum of its proper divisors (8697511214).

12125531026 is a wasteful number, since it uses less digits than its factorization.

12125531026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517409.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 12125531026 in words is "twelve billion, one hundred twenty-five million, five hundred thirty-one thousand, twenty-six".