125305321420 has 24 divisors (see below), whose sum is σ = 278620068384. Its totient is φ = 47173767936.

The previous prime is 125305321357. The next prime is 125305321429. The reversal of 125305321420 is 24123503521.

It is not an unprimeable number, because it can be changed into a prime (125305321429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184272192 + ... + 184272871.

It is an arithmetic number, because the mean of its divisors is an integer number (11609169516).

Almost surely, 2^125305321420 is an apocalyptic number.

125305321420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125305321420 is an abundant number, since it is smaller than the sum of its proper divisors (153314746964).

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

125305321420 is a wasteful number, since it uses less digits than its factorization.

125305321420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368545089 (or 368545087 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 125305321420 its reverse (24123503521), we get a palindrome (149428824941).

The spelling of 125305321420 in words is "one hundred twenty-five billion, three hundred five million, three hundred twenty-one thousand, four hundred twenty".