125101320420 has 24 divisors (see below), whose sum is σ = 350283697344. Its totient is φ = 33360352096.

The previous prime is 125101320359. The next prime is 125101320427. The reversal of 125101320420 is 24023101521.

It is not an unprimeable number, because it can be changed into a prime (125101320427) 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, 1042510944 + ... + 1042511063.

It is an arithmetic number, because the mean of its divisors is an integer number (14595154056).

Almost surely, 2^125101320420 is an apocalyptic number.

125101320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125101320420 is an abundant number, since it is smaller than the sum of its proper divisors (225182376924).

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

125101320420 is a wasteful number, since it uses less digits than its factorization.

125101320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085022019 (or 2085022017 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 125101320420 its reverse (24023101521), we get a palindrome (149124421941).

The spelling of 125101320420 in words is "one hundred twenty-five billion, one hundred one million, three hundred twenty thousand, four hundred twenty".