125011530442 has 16 divisors (see below), whose sum is σ = 191938380480. Its totient is φ = 61032982752.

The previous prime is 125011530433. The next prime is 125011530443. The reversal of 125011530442 is 244035110521.

It is a self number, because there is not a number n which added to its sum of digits gives 125011530442.

It is not an unprimeable number, because it can be changed into a prime (125011530443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49483 + ... + 502465.

It is an arithmetic number, because the mean of its divisors is an integer number (11996148780).

Almost surely, 2^125011530442 is an apocalyptic number.

125011530442 is a deficient number, since it is larger than the sum of its proper divisors (66926850038).

125011530442 is a wasteful number, since it uses less digits than its factorization.

125011530442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456237.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 125011530442 its reverse (244035110521), we get a palindrome (369046640963).

The spelling of 125011530442 in words is "one hundred twenty-five billion, eleven million, five hundred thirty thousand, four hundred forty-two".