125230642320 has 80 divisors (see below), whose sum is σ = 443674281600. Its totient is φ = 28624146432.

The previous prime is 125230642267. The next prime is 125230642321. The reversal of 125230642320 is 23246032521.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (125230642321) 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 15 ways as a sum of consecutive naturals, for example, 37269345 + ... + 37272704.

It is an arithmetic number, because the mean of its divisors is an integer number (5545928520).

Almost surely, 2^125230642320 is an apocalyptic number.

125230642320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125230642320 is an abundant number, since it is smaller than the sum of its proper divisors (318443639280).

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

125230642320 is a wasteful number, since it uses less digits than its factorization.

125230642320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74542072 (or 74542066 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 125230642320 its reverse (23246032521), we get a palindrome (148476674841).

The spelling of 125230642320 in words is "one hundred twenty-five billion, two hundred thirty million, six hundred forty-two thousand, three hundred twenty".