125321321 has 4 divisors (see below), whose sum is σ = 131917200. Its totient is φ = 118725444.

The previous prime is 125321311. The next prime is 125321327. The reversal of 125321321 is 123123521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125321321 - 2¹⁰ = 125320297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125321293 and 125321302.

It is not an unprimeable number, because it can be changed into a prime (125321327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3297911 + ... + 3297948.

It is an arithmetic number, because the mean of its divisors is an integer number (32979300).

Almost surely, 2^125321321 is an apocalyptic number.

It is an amenable number.

125321321 is a deficient number, since it is larger than the sum of its proper divisors (6595879).

125321321 is an equidigital number, since it uses as much as digits as its factorization.

125321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595878.

The product of its digits is 360, while the sum is 20.

The square root of 125321321 is about 11194.7005766121. The cubic root of 125321321 is about 500.4280614223.

Adding to 125321321 its reverse (123123521), we get a palindrome (248444842).

The spelling of 125321321 in words is "one hundred twenty-five million, three hundred twenty-one thousand, three hundred twenty-one".