125450021430 has 128 divisors (see below), whose sum is σ = 338428056960. Its totient is φ = 33064796160.

The previous prime is 125450021413. The next prime is 125450021443. The reversal of 125450021430 is 34120054521.

125450021430 is a `hidden beast` number, since 12 + 5 + 4 + 500 + 2 + 143 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 125450021394 and 125450021403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23070672 + ... + 23076108.

It is an arithmetic number, because the mean of its divisors is an integer number (2643969195).

Almost surely, 2^125450021430 is an apocalyptic number.

125450021430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125450021430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169214028480).

125450021430 is an abundant number, since it is smaller than the sum of its proper divisors (212978035530).

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

125450021430 is a wasteful number, since it uses less digits than its factorization.

125450021430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431 (or 6425 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 125450021430 its reverse (34120054521), we get a palindrome (159570075951).

The spelling of 125450021430 in words is "one hundred twenty-five billion, four hundred fifty million, twenty-one thousand, four hundred thirty".