12125153412 has 60 divisors (see below), whose sum is σ = 31780632576. Its totient is φ = 4031123760.

The previous prime is 12125153401. The next prime is 12125153429. The reversal of 12125153412 is 21435152121.

It is a happy number.

12125153412 is a `hidden beast` number, since 1 + 2 + 125 + 1 + 534 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75237 + ... + 172947.

Almost surely, 2^12125153412 is an apocalyptic number.

12125153412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12125153412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15890316288).

12125153412 is an abundant number, since it is smaller than the sum of its proper divisors (19655479164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12125153412 is a wasteful number, since it uses less digits than its factorization.

12125153412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98110 (or 98099 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The spelling of 12125153412 in words is "twelve billion, one hundred twenty-five million, one hundred fifty-three thousand, four hundred twelve".