125112721152 has 72 divisors (see below), whose sum is σ = 341981893456. Its totient is φ = 40577089536.

The previous prime is 125112721133. The next prime is 125112721163. The reversal of 125112721152 is 251127211521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173033 + ... + 2229864.

Almost surely, 2^125112721152 is an apocalyptic number.

125112721152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125112721152 is an abundant number, since it is smaller than the sum of its proper divisors (216869172304).

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

125112721152 is an equidigital number, since it uses as much as digits as its factorization.

125112721152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402953 (or 4402939 counting only the distinct ones).

The product of its digits is 2800, while the sum is 30.

Adding to 125112721152 its reverse (251127211521), we get a palindrome (376239932673).

The spelling of 125112721152 in words is "one hundred twenty-five billion, one hundred twelve million, seven hundred twenty-one thousand, one hundred fifty-two".