125343488321 has 4 divisors (see below), whose sum is σ = 125406256212. Its totient is φ = 125280720432.

The previous prime is 125343488317. The next prime is 125343488353. The reversal of 125343488321 is 123884343521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41785492225 + 83557996096 = 204415^2 + 289064^2 .

It is a cyclic number.

It is not a de Polignac number, because 125343488321 - 2² = 125343488317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125343488021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31380950 + ... + 31384943.

It is an arithmetic number, because the mean of its divisors is an integer number (31351564053).

Almost surely, 2^125343488321 is an apocalyptic number.

It is an amenable number.

125343488321 is a deficient number, since it is larger than the sum of its proper divisors (62767891).

125343488321 is an equidigital number, since it uses as much as digits as its factorization.

125343488321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62767890.

The product of its digits is 552960, while the sum is 44.

The spelling of 125343488321 in words is "one hundred twenty-five billion, three hundred forty-three million, four hundred eighty-eight thousand, three hundred twenty-one".