125000824321 has 8 divisors (see below), whose sum is σ = 126574778304. Its totient is φ = 123434383920.

The previous prime is 125000824283. The next prime is 125000824331. The reversal of 125000824321 is 123428000521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125000824321 - 2¹¹ = 125000822273 is a prime.

It is a super-2 number, since 2×125000824321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125000824321.

It is not an unprimeable number, because it can be changed into a prime (125000824331) 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, 1844910 + ... + 1911463.

It is an arithmetic number, because the mean of its divisors is an integer number (15821847288).

Almost surely, 2^125000824321 is an apocalyptic number.

It is an amenable number.

125000824321 is a deficient number, since it is larger than the sum of its proper divisors (1573953983).

125000824321 is a wasteful number, since it uses less digits than its factorization.

125000824321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756791.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 125000824321 its reverse (123428000521), we get a palindrome (248428824842).

The spelling of 125000824321 in words is "one hundred twenty-five billion, eight hundred twenty-four thousand, three hundred twenty-one".