125223501443 has 4 divisors (see below), whose sum is σ = 125553906840. Its totient is φ = 124893096048.

The previous prime is 125223501401. The next prime is 125223501497. The reversal of 125223501443 is 344105322521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344105322521 = 61 ⋅5641070861.

It is a cyclic number.

It is not a de Polignac number, because 125223501443 - 2¹⁰ = 125223500419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125223501043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165202130 + ... + 165202887.

It is an arithmetic number, because the mean of its divisors is an integer number (31388476710).

Almost surely, 2^125223501443 is an apocalyptic number.

125223501443 is a deficient number, since it is larger than the sum of its proper divisors (330405397).

125223501443 is an equidigital number, since it uses as much as digits as its factorization.

125223501443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330405396.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 125223501443 its reverse (344105322521), we get a palindrome (469328823964).

The spelling of 125223501443 in words is "one hundred twenty-five billion, two hundred twenty-three million, five hundred one thousand, four hundred forty-three".