125104556112 has 80 divisors (see below), whose sum is σ = 342587269440. Its totient is φ = 39203813376.

The previous prime is 125104556081. The next prime is 125104556201. The reversal of 125104556112 is 211655401521.

It is a happy number.

It is a super-2 number, since 2×125104556112² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633714 + ... + 807342.

It is an arithmetic number, because the mean of its divisors is an integer number (4282340868).

Almost surely, 2^125104556112 is an apocalyptic number.

125104556112 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 125104556112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171293634720).

125104556112 is an abundant number, since it is smaller than the sum of its proper divisors (217482713328).

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

125104556112 is a wasteful number, since it uses less digits than its factorization.

125104556112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174540 (or 174534 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 33.

Adding to 125104556112 its reverse (211655401521), we get a palindrome (336759957633).

The spelling of 125104556112 in words is "one hundred twenty-five billion, one hundred four million, five hundred fifty-six thousand, one hundred twelve".