125223828071 has 4 divisors (see below), whose sum is σ = 125225365512. Its totient is φ = 125222290632.

The previous prime is 125223828047. The next prime is 125223828089. The reversal of 125223828071 is 170828322521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170828322521 = 398347 ⋅428843.

It is a cyclic number.

It is not a de Polignac number, because 125223828071 - 2¹⁸ = 125223565927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125223828001) 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, 639281 + ... + 811866.

It is an arithmetic number, because the mean of its divisors is an integer number (31306341378).

Almost surely, 2^125223828071 is an apocalyptic number.

125223828071 is a deficient number, since it is larger than the sum of its proper divisors (1537441).

125223828071 is an equidigital number, since it uses as much as digits as its factorization.

125223828071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537440.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 125223828071 in words is "one hundred twenty-five billion, two hundred twenty-three million, eight hundred twenty-eight thousand, seventy-one".