125112513042 has 48 divisors (see below), whose sum is σ = 295831961568. Its totient is φ = 37898591040.

The previous prime is 125112513007. The next prime is 125112513083. The reversal of 125112513042 is 240315211521.

It is a happy number.

125112513042 is a `hidden beast` number, since 12 + 511 + 2 + 5 + 130 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 125112512997 and 125112513015.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 413478 + ... + 648990.

It is an arithmetic number, because the mean of its divisors is an integer number (6163165866).

Almost surely, 2^125112513042 is an apocalyptic number.

125112513042 is an abundant number, since it is smaller than the sum of its proper divisors (170719448526).

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

125112513042 is a wasteful number, since it uses less digits than its factorization.

125112513042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238215 (or 238212 counting only the distinct ones).

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

Adding to 125112513042 its reverse (240315211521), we get a palindrome (365427724563).

The spelling of 125112513042 in words is "one hundred twenty-five billion, one hundred twelve million, five hundred thirteen thousand, forty-two".